Jonathan Marchessault converted on a penalty shot with 2:36 remaining in overtime to give the Golden Knights a 4-3 victory over the Ottawa Senators on Sunday at T-Mobile Arena.
Alex Tuch had two goals, and Ryan Reaves scored on the power play late in the second period for the Knights, who finished with a franchise-record 53 shots on goal.
Cody Eakin took a hard hit from Senators defenseman Mark Borowiecki with 4:31 remaining in the first period and did not return. The Knights already were without left wing Max Pacioretty, who was injured in Friday’s loss to Tampa Bay.