The Vikings are preparing Joe Webb to start at quarterback against the Eagles on Sunday. Minnesota hasn't yet ruled out Brett Favre for the game after he made a surprise start on Monday night against the Bears. "It will just be a day-to-day situation," interim coach Leslie Frazier said. "If he gets cleared by our doctors then things will change, but until he's cleared there isn't much that can be done other than whatever the doctors recommend." Webb went 15-for-26 with 129 yards and two interceptions in relief of Favre, who suffered a concussion, against Chicago. He rushed for 38 yards and a touchdown.