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Michael Vick admits he can't keep taking hits

X-rays on Michael Vick's injured ribs were negative. (Jim Rogash/Getty Images)

Michael Vick was knocked out of a preseason game for the second time in two weeks, this time after a hit by New England Patriots defensive end Jermaine Cunningham.

X-rays were negative for broken ribs, but wide receiver DeSean Jackson told ESPN Vick knows he has to change his style of play if he's to survive as an NFL starting quarterback.

“He’s sore and bruised up a little bit,” Jackson said. “He’s just like, ‘Man, I can’t keep taking hits like that.’”

Vick's injury came on a play-action pass in a collapsing pocket. Vick got the pass off but left himself vulnerable to an on-rushing Cunningham, who drove the quarterback into the turf.

Vick left the Eagles' first preseason game early after hitting the thumb on his throwing hand on a helmet.

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