Vegas Golden Knights captain Mark Stone left his team's game at the Pittsburgh Penguins because of an undisclosed injury. Kris Letang gave Stone a seemingly harmless shove to the left arm with his stick in the neutral zone late in the first period. Stone grimaced in pain, went down to one knee and skated off. The 33-year-old winger has a history of injuries sidelining him throughout his NHL career over the past decade-plus. Stone is the Golden Knights' second-leading scorer with 60 points in 42 games. He just helped Canada reach the final at the Olympics before losing to the U.S. in overtime.