Hockey can be a strange sport sometimes. Such as on Tuesday, when the Washington Capitals took on former coach Bruce Boudreau and the Anaheim Ducks. Seeing Boudreau bark orders to another team is odd enough; seeing Mathieu Perreault dart around in black and olive feels outright wrong.

Late in the third period, with the Capitals protecting a 3-2 lead, bedfellows got even stranger when Alex Ovechkin and Perreault collided near the Caps crease. Perreault took an extra whack at a loose puck, which Ovechkin did not seem to like very much.

The Russian machine cleared the crease the only way he knows how, shoving Perreault twice and knocking him over. With Matty belly up along the boards, Ovechkin loomed over his former bro as if to say, “You know not to do dis.”

It seems all friendships are suspended once you step on the ice. You can be BFFs away from the rink, but during a one-goal game? Nope. Not even a little.

Both Ovechkin and Perreault scored in the game by the way.

Perreault scored on a beautifully placed shot to the top corner of the net.

And Ovechkin netted the game-winner, a one-timer powerplay marker from The Ovi Spot.

That was Ovi’s 46th goal of the year.

But still: Perreault on the Ducks. So weird.