Umenyiora tweets I could be in a wheelchair by 45

There's been a lot of discussion about player safety, and while DE Osi Umenyiora said he'd let his son play football if he wanted to, he has his reservations. "It's an awesome game and has done a lot for me, but I know when I'm 45 there is a strong chance I'll be in a wheelchair," he wrote on his Twitter page. Umenyiora has had hip and knee issues in the past.