Montreal - Pittsburgh Penguins captain Sidney Crosby has a mild concussion and will be out of the lineup at least one week.
Penguins head coach Dan Bylsma made the announcement following his club's 2-1 shootout loss in Montreal, which Crosby missed with what was termed prior to the game as an upper-body injury.
The 23-year-old Nova Scotia native, who leads the NHL with 32 goals and 66 points in 41 games, was sent back to Pittsburgh for evaluation earlier Thursday.
According to TSN of Canada, the concussion was likely suffered late in the second period of Saturday's Winter Classic, when Capitals forward David Steckel skated by Crosby and hit him on the side of his head.
