Miami running back Ronnie Brown is out for the rest of the season because of a knee injury. Brown will need surgery to repair a torn ACL, coach Cam Cameron said Monday. He twisted his right knee in the third quarter of the Dolphins' 49-28 loss to the New England Patriots on Sunday. "His spirits are up," Cameron said. "He's already talking about getting the surgery and getting ready to get back and get it rehabbed and getting ready for spring."