David Carr practiced again Thursday, but Carolina coach John Fox still held off naming him the starting quarterback ahead of Vinny Testaverde for Sunday's game against Indianapolis. Fox said Carr, who has been slowed by a compression fracture in his lower back, responded well to consecutive practices. "He's looked good. I thought he had a good practice today," Fox said. "He didn't have any setbacks." Fox has said Carr will play if he's healthy.