For the second-consecutive contest, the Tampa Bay Lightning have lost a defenseman to injury mid-game.
On Tuesday, it was Jan Rutta, who suffered a lower-body injury versus Vegas and is week-to-week.
Thursday against the Metropolitan Division's Pittsburgh Penguins, Ryan McDonagh sustained a lower-body injury blocking a shot on an early second-period penalty kill and was forced to sit for the remainder of the game.
McDonagh tried to skate during a stoppage in play to test the injury but was seen limping down the tunnel to the locker room moments later.
McDonagh ranks second on Tampa Bay for average overall time on ice (20:54) and paces the Bolts (6th in NHL) for average shorthanded ice time (3:19). The veteran defenseman led the Lightning for blocked shots entering the game and ranked tied for 22nd in the NHL.
McDonagh has skated in 48 games for the Lightning this season, tallying a goal and 11 assists. He remains one point away from recording his 300th career NHL point.