In ice hockey, injuries are common due to the sport's physical nature. Brad Marchand, the captain of the Boston Bruins, was injured during a game against the Pittsburgh Penguins. The incident involved a collision with Penguins defenseman P.O Joseph. - Brad Marchand, captain of the Boston Bruins, sustained an upper-body injury during the first period of Saturday's game against the Pittsburgh Penguins. - The injury occurred after Marchand collided with Penguins defenseman P.O Joseph, resulting in Marchand being helped off the ice. - P.O Joseph also sustained an upper-body injury during the game and was ruled out. - Marchand, who recently represented Canada in the 4 Nations Face-Off, has 21 goals and 26 assists this season. - The Bruins were already short-handed due to an injury to Trent Frederic earlier in the week.