Kevin Kolb is battling it out for the starting quarterback position this year, and nothing makes it a bit harder than being forced out by injury.
Kolb took a knee to the thigh by David Carter and left the training camp practice as a precautionary move. The Cardinals camps labelled Kolb's injury as a quad contusion.
As Kolb and John Skelton duke it out for the starting spot, any extended time Kolb may miss will obviously be hard to overcome. Kolb's tenure with the Cardinals so far has been marred by injuries, where he only played in nine games last season. A stable quarterback situation would go a long way in helping the Cardinals win the NFC West.