Karlsson, who spent his first nine NHL seasons in Ottawa, including his final four as Senators captain, before he was traded to San Jose, initially was unaware he was on the ice by himself but smiled when he saw his teammates join him.
The crowd at Canadian Tire Centre cheered Karlsson every chance it got, especially when the Senators showed a video tribute for him during the first period. Karlsson acknowledged the fans, who gave him a standing ovation after the video ended.