Mike Brown, strong safety of the Chicago Bears, is out indefinitely after undergoing surgery to repair ligament damage in his right foot Wednesday. Brown limped off the field and was taken from the sideline on a cart during the fourth quarter of Monday's 24-23 comeback victory at Arizona after his foot got twisted on a running play. "Severe blow," coach Lovie Smith said. "I think we all know what Mike means to our football team. He's a special player. He was having an outstanding game. ... That's a big blow, but injuries do happen. Mike has been in this situation before."