The hit on Richards occurred in the final minutes of the Kings' 2-1 loss on Saturday. Los Angeles coach Darryl Sutter said earlier Sunday that Richards was "fine" and the hit by Bolland was "not an issue," but Richards was scratched from the Game 2 lineup. His injury was then announced in the press box.
Richards has two goals and eight assists for a team-high 10 playoff points.
Defenceman Jake Muzzin also was scratched Sunday after he played in each of Los Angeles' first 14 playoff games.
It was a different game in the past, that's for sure. It's not exactly what I was expecting but I think the experience paid off for a lot of our guys that realized what it takes in a Game 7. Realistically the effort we put forward, we might not even had to put 60 [minutes], but we just couldn't get a couple bounces to go our way and we just kept pushing.
— Capitals goaltender Braden Holtby on Washington's play in Game 7 vs. the Islanders