LAS VERGAS — Matthew Tkachuk could not play in Game 5 Tuesday night due to an injury suffered two games earlier in the Stanley Cup Final against the Vegas Golden Knights. Coach Paul Maurice had said Tuesday morning he knew the status of Tkachuk, but wouldn’t reveal it until game-time. NHL lineups don’t have to be announced until just before the game starts. Much of the two days leading up to Game 5 was spent wondering about Tkachuk’s status.