Detroit Red Wings defenseman Brendan Smith said he will miss 3-4 weeks with a "normal AC sprain" in his right shoulder.

Smith was injured in the first period of Saturday's game at Columbus when he was hit by forward Derek Mackenzie.

"I was in the corner and I think Mackenzie came to hit me and I dropped my shoulder," Smith said. "I didn't fall, it didn't really hurt right away. Next thing I was skating out to the blue line and shoulder felt a little weird."

Smith said the rash of injuries that have hit the Wings' defensemen is just bad luck.

"It's unbelievable how the injury bug seems to be hitting the D-side," Smith said. "In my case for sure, I don't even know how it happened. Guy came to hit me, and he was the one that I think actually fell. I couldn't believe it actually happened."

Defenseman Ian White (leg laceration) practiced today and said he hoped to be back in the lineup Tuesday against Calgary (7:30 p.m. Fox Sports Detroit), although he hasn't yet been cleared by doctors.