PHILADELPHIA -- Kevin Kolb has another chance to prove he's a capable starting quarterback.
Kolb will replace the injured Michael Vick when the Philadelphia Eagles visit San Francisco on Sunday. Vick didn't practice all week because of a rib cartilage injury, and won't travel with the team.
Though coach Andy Reid didn't rule Vick out for the game until Friday, Kolb has been preparing as if he would play.
"I approached it like that all week, and that's the way you have to do it, so it doesn't change anything in my mind," Kolb said. "But it just helps you focus in on that you're the guy and you've got to go in and win."
Vick was hurt in the first quarter of Philadelphia's 17-12 loss last Sunday to Donovan McNabb and the Washington Redskins.