The forward knocked Chicago's Brian Campbell into the boards in the first period Sunday and received a game misconduct. With the league's leading scorer kicked out of the game, the Capitals later came back from a 3-0 third-period deficit to win 4-3 in overtime.
In a team statement, Capitals GM George McPhee commented on the decision.
"We have no problem with the way Alex tried to finish his check. Unfortunately, an injury resulted. We are disappointed with the suspension but do not want to comment further."
Ovechkin will miss games Tuesday at Florida and Thursday at Carolina. He can return Saturday at Tampa Bay.