During the second period of Anaheim's 6-3 win, Ruutu tagged Erat in the neutral zone with what appeared to be a hit to the head. Erat went down immediately and lay on the ice for a few minutes before slowly get up with help. He went to the locker room and did not return. The team said he suffered an upper body injury.
Ruutu received a minor interference penalty on the play.
"It's just a hockey hit. It wasn't in the head or anything," Ruutu said following the game. "I wanted to get near him. Just at the last second, he turned into me. It's a hockey hit. I actually saw his eyes."
The two teams go head-to-head in Game 5 on Friday at 10pm et/7pm pt on TSN.