From an article on YAHOO sports this morning:

Quote:

"When any player goes down you get a little scare, but it's not bad at all," coach Dave Tippett said. "He just tweaked an old injury. When I talked to him between periods, he seemed to respond well, so I don't think it's serious at all. I just talked to him and he was planning on skating tomorrow, so there's nothing to be concerned about. I don't think there's much to evaluate."

(Color added by me.)