It got a little thin along the Blackhawks' blue line for the bulk of Sunday's game against the Capitals. Midway through the second period, Brian Campbell left the ice and didn't return as he tried to battle through a left leg injury that caused him to miss the Hawks' previous game and two days of practice. When Brent Seabrook was later sent off for five minutes following a fight with Jason Chimera, it was left to fellow defensemen Duncan Keith, Niklas Hjalmarsson, Nick Leddy and Chris Campoli to pick up the slack. "That was tough," said Keith, who played a game-high 30 minutes, 42 seconds. "We had four 'D' there for a good part of the game and five for most of the game. It wears on you, especially with a team like (Washington) with a lot of speed and guys who can do a good job cycling the puck and playing it down low." In what was a smart play, Chimera initiated the fight with Seabrook and it was while the two were still in the box early in the third that Brooks Laich scored a key goal to give the Capitals the lead in a game they eventually won 4-3 in overtime.