With Kris Letang's concussion history this season, the Penguins weren't taking any chances Sunday when he collided with New Jersey's Dainius Zubrus. They made him leave the game until he got cleared by a doctor.

"We wouldn't put him [back] on the ice if he had any lingering effects until a doctor looked at him, given the way he reacted to that confrontation," coach Dan Bylsma said.

It turns out another play, in the third period of that game, was the one that knocked Letang out of a game Tuesday against the New York Islanders at Consol Energy Center. He went feet-first into the end boards awkwardly when he was tripped by Devils forward Ryan Carter and sustained an undisclosed injury.