He did return for a series but the Eagles announced at halftime that Kolb has a concussion and would not return.
The Eagles appeared to be giving him concussion-related tests on the sideline before he returned the first time.
The NFL has been stringent in the last year about how teams treat concussions. If a player suffers a concussion, he can not return under any circumstances.
Michael Vick replaced Kolb at quarterback.
Check out Bleeding Green Nation for more on the Kevin Kolb injury.