I thought the same thing. This is from Chris Brown's Blog;
Poz has broken bone in arm
Chris Brown
Posted September 15th, 2009
Tags: Chris Kelsay, Paul Posluszny
Dick Jauron confirmed that Paul Posluszny has a broken bone in his arm.
“I know that Paul has a broken bone in his arm,” said Jauron. ”I’m not certain how long it will keep him out, but it’s not as bad as the first one was.”
Posluszny missed the last 13 games of his rookie season after shattering his forearm against New England on the very same field in 2007. No prognosis on Chris Kelsey’s knee injury.
I couldn't find anything at BB.com beyond that.