With 4 minutes and 22 seconds elapsed in the second period of the Capitals’ 5-2 loss to Dallas on Tuesday night, defenseman John Erskine was given a two-minute minor penalty for boarding.

Erskine, who happened to be playing in his 400th career NHL game, received the penalty after he checked Stars defenseman Trevor Daley into the end boards behind the Washington net.

Daley appeared to fall just as Erskine hit him and the Dallas defenseman’s head appeared to take the brunt of the initial contact, which is a benchmark for hits that receive supplementary discipline from the NHL. Daley was slow to get up but ultimately finished the game.

At this point, it’s uncertain if Erskine will face any punishment from the league or have a disciplinary hearing with Brendan Shanahan, the league’s Vice President of player safety. Erskine said that he didn’t intend to injure Daley on the play.

“I went to go hit him,” Erskine said, adding that he hadn’t seen a replay of the hit. “I went to go hit him, I know the guy so I wasn’t going in intending to do a head shot or anything. It was accidental, we’ll see what happens.”