Carson Palmer knew Detroit's reputation for penalties, so when he let go of his pass with the game on the line, a pass interference call was a definite possibility. Sure enough, Lions cornerback Bill Bentley collided with receiver Andre Roberts in the end zone. A flag was thrown, a 31-yard penalty was called. It was Arizona's only third-down conversion -- in 11 tries -- of the day. Two plays later, Rashard Mendenhall scored on a 1-yard run with 1:59 to play and the Cardinals won 25-21 on Sunday in Bruce Arians' home debut as Arizona's coach.