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Karlsson logged a power-play assist and three shots on goal in Thursday's 4-1 loss to the Anaheim Ducks.
Karlsson scored twice in the third period to send the game to overtime in Sunday's 4-3 victory over the Colorado Avalanche.
Karlsson scored a goal on five shots and blocked two shots in Friday's 7-2 win over the Minnesota Wild.
Karlsson notched a shorthanded assist and two hits in Wednesday's 5-1 loss to the Edmonton Oilers.
Karlsson scored a goal, dished an assist and added three hits in Friday's 7-4 loss to the Arizona Coyotes.
Karlsson scored a power-play goal on four shots and added two hits in Tuesday's 6-3 win over the Vancouver Canucks.
Karlsson recorded an assist in Saturday's 2-1 overtime win over the Minnesota Wild.
Karlsson notched two assists and went plus-3 in Thursday's 4-1 win over the Winnipeg Jets.
Karlsson scored a goal on three shots and added an assist in Tuesday's 5-4 overtime loss to the Nashville Predators.
Karlsson notched an assist and went plus-2 in Monday's 2-1 overtime win over the St. Louis Blues.
Karlsson scored an empty-net goal on four shots and blocked two shots in Sunday's 3-1 win over the New Jersey Devils.
Karlsson scored a goal on four shots, dished an assist, went plus-3, added three hits and blocked two shots in Tuesday's 5-4 overtime win over the Seattle Kraken.
Karlsson scored a goal on four shots, blocked two shots and went minus-2 in Monday's 6-3 loss to the Columbus Blue Jackets.
Karlsson scored a goal on three shots and went minus-2 in Saturday's 7-2 loss to the Buffalo Sabres.
Karlsson registered one goal, three hits and an assist in the 6-2 road win over the Toronto Maple Leafs on Tuesday night.
Karlsson recorded an assist, two shots on goal and two PIM in Thursday's 3-2 win over the Arizona Coyotes.
Karlsson scored an empty-net goal and blocked three shots in Tuesday's 3-1 win over the Edmonton Oilers.
Karlsson (lower body) is likely to be available right after the All-Star break, per Jason Gregor of Sports 1440 Edmonton on Thursday. Vegas' first game after the break is Feb. 6 against the Edmonton Oilers.
Karlsson (lower body) is now considered week-to-week, Jesse Granger of The Athletic reports.
Karlsson (lower body) was designated for injured reserve Thursday, per the NHL media site.
Karlsson (lower body) won't play Thursday versus Florida or Saturday against the New York Islanders, Danny Webster of the Las Vegas Sun reports.
Karlsson scored a goal on four shots in Thursday's 3-2 win over the Los Angeles Kings.
Karlsson dished a power-play assist in Wednesday's 5-2 loss to the Anaheim Ducks.
Karlsson scored a power-play goal on three shots in Sunday's 6-3 win over the Ottawa Senators.
Karlsson scored a goal on five shots and added a power-play assist in Tuesday's 5-4 overtime win over the Calgary Flames.
Karlsson managed an assist, two shots on goal and a plus-2 rating in Saturday's 6-1 win over the Dallas Stars.
Karlsson scored an empty-net goal on two shots and added a power-play assist in Wednesday's 6-3 win over the St. Louis Blues.
Karlsson notched an assist and four shots on goal in Saturday's 4-1 win over the Washington Capitals.
Karlsson scored a power-play goal on two shots in Thursday's 4-1 win over the Vancouver Canucks.
Karlsson scored a power-play goal on three shots, added two hits and blocked two shots in Monday's 2-1 overtime loss to the Calgary Flames.
Karlsson scored a goal on four shots, blocked two shots and added two PIM in Saturday's 4-3 overtime loss to the Philadelphia Flyers.
Karlsson scored a shorthanded goal, added an assist and went plus-2 in Friday's 5-0 win over the San Jose Sharks.
Karlsson scored a goal in Wednesday's 4-1 loss to the Los Angeles Kings.
Karlsson scored twice and went plus-2 in Saturday's 7-0 win over the Colorado Avalanche.
Karlsson scored a goal, added a power-play assist and went plus-2 in Thursday's 5-2 win over the Winnipeg Jets.
Karlsson picked up a power-play assist in Monday's 3-2 shootout win over the Montreal Canadiens.
Karlsson notched an assist and three shots on goal in Saturday's 4-3 shootout win over the Los Angeles Kings.
Karlsson picked up a goal and an assist in Friday's 4-3 overtime loss to Chicago.
Karlsson notched an assist and two shots on goal in Tuesday's 3-2 win over the Philadelphia Flyers.
Karlsson scored a power-play goal on two shots and added two PIM in Saturday's 5-3 win over the Chicago Blackhawks.
Karlsson notched an assist, two blocked shots and a plus-2 rating in Thursday's 5-3 win over the Winnipeg Jets.
Karlsson scored a goal on four shots, dished an assist and went plus-2 in Tuesday's 3-2 shootout win over the Dallas Stars.
Karlsson produced two assists, two shots on goal and a plus-2 rating in Thursday's 4-1 win over the San Jose Sharks.
Karlsson put up an assist and went plus-2 in Tuesday's 9-3 win over the Florida Panthers in Game 5.
Karlsson scored a goal and blocked two shots in Saturday's 3-2 win over the Florida Panthers in Game 4.
Karlsson (illness) is expected to be in the lineup for Game 3 on Thursday.
Karlsson missed Wednesday's practice because of an illness, according to Ben Gotz of the Las Vegas Review-Journal.
Karlsson scored two goals and registered an assist in Vegas' 6-0 victory over the Dallas Stars in Game 6 on Monday.
Karlsson scored a goal on two shots and blocked two shots in Thursday's 3-2 overtime loss to the Dallas Stars in Game 4.
Karlsson collected two goals in a 4-3 overtime win over the Dallas Stars in Game 1 on Friday.
Karlsson scored into an empty Edmonton net Sunday, sealing a 5-2 win for Vegas.
Karlsson logged a power-play assist and four shots on goal in Friday's 4-3 win over the Edmonton Oilers in Game 5.
Karlsson provided an assist, fired three shots on goal and blocked two shots in Wednesday's 6-4 win over the Edmonton Oilers in Game 1.
Karlsson scored a goal on two shots in Thursday's 4-1 win over the Winnipeg Jets in Game 5.
Karlsson scored a goal in Monday's 4-2 win over the Winnipeg Jets in Game 4.
Karlsson scored a goal on three shots, added an assist, logged two hits and went plus-2 in Thursday's 5-2 win over the Winnipeg Jets.
Karlsson scored a goal on two shots and added five hits in Tuesday's 5-1 loss to the Winnipeg Jets in Game 1.
Karlsson logged two assists, six shots on goal and a plus-2 rating in Tuesday's 4-1 win over the Seattle Kraken.
Karlsson registered two assists in Vegas' 4-3 shootout win over the Minnesota Wild on Monday.
Karlsson scored a shorthanded goal in Tuesday's 7-4 loss to the Edmonton Oilers.
Karlsson logged a power-play assist and two shots on goal in Saturday's 4-3 overtime win over the Edmonton Oilers.
Karlsson logged two assists and went plus-2 in Tuesday's 4-3 win over the Vancouver Canucks.
Karlsson registered an assist and three shots on goal in Thursday's 7-2 loss to the Calgary Flames.
Karlsson tallied a goal and an assist in Sunday's 5-3 victory over the St. Louis Blues.
Karlsson notched an assist, two shots on goal and two blocked shots in Saturday's 4-0 win over the Carolina Hurricanes.
Karlsson scored a shorthanded goal on four shots in Thursday's 4-3 overtime win over the Tampa Bay Lightning.
Karlsson logged an assist in Sunday's 4-3 win over the Montreal Canadiens.
Karlsson logged an assist and went minus-2 in Wednesday's 3-2 win over the Carolina Hurricanes.
Karlsson recorded an assist in Saturday's 5-4 win over the Tampa Bay Lightning.
Karlsson produced two assists, two shots on goal and a plus-2 rating in Sunday's 7-2 win over the Anaheim Ducks.
Karlsson logged an assist, four shots on goal and a plus-2 rating in Tuesday's 5-1 win over the Nashville Predators.
Karlsson notched an assist, two shots on goal and two hits in Friday's 4-1 loss to the New York Rangers.
Karlsson scored a goal on three shots in Tuesday's 3-2 overtime loss to the New Jersey Devils.
Karlsson logged a power-play assist and went minus-2 in Sunday's 4-1 loss to the Arizona Coyotes.
Karlsson scored a goal on three shots and went plus-2 in Thursday's 3-2 loss to the Detroit Red Wings.
Karlsson scored a goal on three shots in Saturday's 4-3 loss to the Edmonton Oilers.
Karlsson scored an empty-net power-play goal in Thursday's 4-2 win over the Florida Panthers.
Karlsson provided a pair of assists and fired two shots on goal in Thursday's 5-2 win over the Pittsburgh Penguins.
Karlsson notched an assist, two shots on goal and two blocked shots in Saturday's 5-4 overtime win over the Nashville Predators.
Karlsson logged a power-play assist, three shots on goal and two hits in Friday's 5-4 shootout win over the St. Louis Blues.
Karlsson logged a power-play assist and blocked two shots in Wednesday's 5-2 win over the Arizona Coyotes.
Karlsson produced an assist and three shots on goal in Monday's 3-2 loss to the Buffalo Sabres.
Karlsson notched two assists and went plus-2 in Thursday's 4-1 win over the Chicago Blackhawks.
Karlsson contributed a goal and an assist in Tuesday's 6-5 victory over the Winnipeg Jets.
Karlsson posted an assist, two shots on goal and two hits in Monday's 4-3 shootout win over the Boston Bruins.
Karlsson produced a power-play assist and went minus-2 in Thursday's 4-3 loss to the Pittsburgh Penguins.
Karlsson provided a goal in Vegas' 3-2 shootout win versus Columbus on Monday.
Karlsson logged a power-play assist and two shots on goal in Friday's 4-2 loss to the Seattle Kraken.
Karlsson notched an assist, two shots on goal and two blocked shots in Saturday's 3-2 loss to the St. Louis Blues.
Karlsson provided a pair of assists, two shots on goal, three hits and a plus-2 rating in Tuesday's 4-3 overtime win over the Toronto Maple Leafs.
Karlsson logged an assist and two shots on goal in Saturday's 6-4 win over the Montreal Canadiens.
Karlsson recorded a power-play assist and went minus-2 in Thursday's 5-4 win over the Ottawa Senators.
Karlsson notched an assist, two shots on goal and two hits in Tuesday's 3-2 overtime win over the Washington Capitals.
Karlsson scored an even-strength goal and added a short-handed assist in Friday's 4-0 win over the Anaheim Ducks.
Karlsson scored a goal on two shots and blocked two shots in Tuesday's 4-2 win over the San Jose Sharks.
Karlsson scored a goal on two shots, dished an assist and went plus-2 in Thursday's 5-2 win over the Winnipeg Jets.
Karlsson scored a power-play goal and added an assist in Tuesday's 4-3 win over the Los Angeles Kings.
Karlsson recorded a goal and an assist in Friday's 7-4 win over the St. Louis Blues.
Karlsson notched an assist, three shots on goal and three hits in Sunday's 5-4 shootout loss to the San Jose Sharks.
Karlsson recorded an assist, two shots on goal, two hits and a plus-2 rating in Wednesday's 4-3 overtime win over the Washington Capitals.
Karlsson scored a goal on four shots, added two assists, went plus-3 and tacked on two PIM in Thursday's 6-1 win over the Calgary Flames.
Karlsson recorded an assist, four shots on goal and a plus-3 rating in Tuesday's 5-4 overtime loss to the Vancouver Canucks.
Karlsson notched an assist and three shots on goal in Saturday's 6-1 win over the Arizona Coyotes.
Karlsson recorded an assist in Sunday's 3-2 overtime win over the Vancouver Canucks.
Karlsson scored an empty-net goal on five shots in Friday's 5-2 win over the Seattle Kraken.
Karlsson notched an assist and five shots on goal in Wednesday's 3-0 win over the Seattle Kraken.
Karlsson scored a goal on two shots in Saturday's 5-4 overtime win over the Chicago Blackhawks.
Karlsson scored an empty-net goal on two shots and added two PIM in Thursday's 5-3 win over the Florida Panthers.
Karlsson notched an assist in Friday's 5-4 win over the Anaheim Ducks.
Karlsson provided a pair of assists, two blocked shots and a plus-2 rating in Tuesday's 3-1 win over the San Jose Sharks.
Karlsson produced an assist in Friday's 4-3 overtime loss to the Los Angeles Kings.
Karlsson scored a shorthanded goal on two shots, dished an assist and went plus-2 in Tuesday's 4-0 win over the Edmonton Oilers.
Karlsson logged two assists and three shots on goal in Tuesday's 5-2 win over the Buffalo Sabres.
Karlsson scored a goal on seven shots and added an assist, both on the power play, in Thursday's 4-3 overtime win over the Montreal Canadiens.
Karlsson scored a goal on two shots in Tuesday's 4-3 shootout loss to the Toronto Maple Leafs.
Karlsson scored a goal on two shots, dished an assist, levied three hits, added two PIM and went plus-2 in Tuesday's 3-2 loss to the Nashville Predators.
Karlsson posted an assist, two shots on goal and two PIM in Tuesday's 6-3 win over the Los Angeles Kings.
Karlsson scored a goal and added an assist in Thursday's 5-3 win over the New Jersey Devils.
Karlsson scored a goal on two shots in Friday's 4-3 loss to the Philadelphia Flyers.
Karlsson posted an assist in Wednesday's 5-4 win over the Dallas Stars.
Karlsson (foot) was activated from injured reserve and is expected to suit up Sunday against the Calgary Flames, David Schoen of the Las Vegas Review-Journal reports.
Karlsson (foot/COVID-19 protocols) will be a game-time decision for Sunday's matchup with Calgary, Jesse Granger of The Athletic reports.
Karlsson (foot) was placed in the league's COVID-19 protocols Monday, Jesse Granger of The Athletic reports.
Karlsson sustained a broken foot that will keep him out of action for at least six weeks, Jesse Granger of The Athletic reports.
Karlsson logged an assist in Friday's 5-4 shootout win over the Anaheim Ducks.
Karlsson scored a goal on four shots in Wednesday's 3-1 loss to the St. Louis Blues.
Karlsson notched an assist and won 10 of 14 faceoffs in Tuesday's 4-3 win over the Seattle Kraken.
Karlsson produced two assists, four shots on goal and a plus-2 rating in Thursday's 3-2 overtime loss to the Montreal Canadiens in Game 6.
Karlsson notched an assist in Sunday's 2-1 overtime win over the Montreal Canadiens in Game 4.
Karlsson notched an assist and four hits in Wednesday's 3-2 loss to the Montreal Canadiens in Game 2.
Karlsson provided an assist and went plus-2 in Monday's 4-1 win over the Montreal Canadiens in Game 1.
Karlsson scored a goal on two shots in Thursday's 6-3 win over the Colorado Avalanche in Game 6.
Karlsson produced three assists, three shots on goal and a plus-2 rating in Sunday's 5-1 win over the Colorado Avalanche in Game 4.
Karlsson scored a goal on two shots and went plus-2 in Friday's 3-2 win over the Colorado Avalanche in Game 3.
Karlsson scored a goal on three shots and went minus-2 in Sunday's 7-1 loss to the Colorado Avalanche in Game 1.
Karlsson provided an assist, three hits, two shots on goal, two PIM and a plus-2 rating in Friday's 6-2 win over the Minnesota Wild in Game 7.
Karlsson scored a goal, dished an assist, blocked three shots and went plus-3 in Thursday's 5-2 win over the Minnesota Wild.
Karlsson collected an assist, two shots on goal and three hits in Tuesday's 3-1 win over the Minnesota Wild in Game 2.
Karlsson notched an assist and five shots on goal in Wednesday's 6-0 win over the San Jose Sharks.
Karlsson managed an assist, two PIM and two hits in Friday's 4-3 overtime win over the St. Louis Blues.
Karlsson recorded two assists, two shots on goal and a pair of hits in Monday's 6-5 loss to the Minnesota Wild.
Karlsson scored a goal in Saturday's 3-2 overtime win over the Arizona Coyotes.
Karlsson scored a goal on two shots and went plus-2 in Wednesday's 5-2 win over the Colorado Avalanche.
Karlsson scored a goal on four shots in Saturday's 5-1 win over the Anaheim Ducks.
Karlsson produced an assist and went plus-4 in Wednesday's 5-2 win over the San Jose Sharks.
Karlsson scored a goal in Friday's 4-0 win over the Anaheim Ducks.
Karlsson notched two assists, including one while shorthanded, in Friday's 7-4 win over the Arizona Coyotes.
Karlsson recorded an assist, three shots on goal and a plus-2 rating in Monday's 6-1 win over the St. Louis Blues.
Karlsson scored a goal on three shots in Thursday's 3-2 shootout loss to the Minnesota Wild.
Karlsson scored a goal on three shots and added three hits in Wednesday's 4-2 loss to the Los Angeles Kings.
Karlsson managed an assist and a team-high four shots on goal in Monday's 4-1 win over the Los Angeles Kings.
Karlsson scored a goal on four shots and supplied two assists in Monday's 5-1 win over the St. Louis Blues.
Karlsson scored a goal in Friday's 4-2 win over the Los Angeles Kings.
Karlsson (COVID-19 protocols) will be in Friday's lineup against the Los Angeles Kings, David Schoen of the Las Vegas Review Journal reports.
Karlsson was added to the league's COVID-19 protocols list Friday, Jesse Granger of The Athletic reports.
Karlsson notched an assist and three shots on goal in Wednesday's 5-4 win over the San Jose Sharks.
Karlsson posted an assist and two blocked shots in Saturday's 5-1 win over the St. Louis Blues.
Karlsson posted an assist and three hits in Friday's 5-4 overtime win over the San Jose Sharks.
Karlsson scored an empty-net goal and added an assist in Wednesday's 5-1 win over the Minnesota Wild.
Karlsson scored twice and went plus-2 in Saturday's 3-2 overtime win over the Anaheim Ducks.
Karlsson notched a pair of assists and two shots on goal in Monday's 3-0 win over the Colorado Avalanche.
Karlsson provided two assists, a pair of shots on goal and two blocked shots in Tuesday's 3-2 loss to the Colorado Avalanche.
Karlsson posted an assist in Tuesday's 5-4 win over the Anaheim Ducks.
Karlsson scored a goal on four shots, dished two assists and went plus-2 in Friday's 5-2 win over the Los Angeles Kings.
Karlsson scored with 43 seconds remaining in Sunday's game against the Arizona Coyotes to lift Vegas to a 1-0 win.
Karlsson recorded an assist and two blocked shots in Monday's 4-2 win over the Arizona Coyotes.
Karlsson scored a goal on five shots in Saturday's 2-1 overtime win over the Anaheim Ducks.
Signed C William Karlsson to an eight-year, $47.2 million contract extension.
Signed C William Karlsson to a one-year, $5.25 million contract.
Signed C William Karlsson to a two-year, $2 million contract extension.
Assigned C William Karlsson to Springfield (AHL).
Recalled C William Karlsson from Springfield (AHL).
Assigned C William Karlsson to Norfolk (AHL).
Recalled C William Karlsson from Norfolk (AHL).
Assigned C William Karlsson to Norfolk (AHL).
Assigned C William Karlsson to Norfolk (AHL).
Assigned C William Karlsson to Norfolk (AHL).
Signed C William Karlsson to a thee-year, entry-level contract.