With Jake Delhomme out for the 2007 season due to an elbow injury he suffered in a Week 3 victory over the Atlanta Falcons, and David Carr out with a sore back, the Panthers signed Testaverde on October 10, 2007. Testaverde, wearing #16, started his first game with the team on October 14, 2007 against the Arizona Cardinals. In that game he threw a 65-yard touchdown pass to Steve Smith, extending his NFL record to 21 consecutive seasons with a touchdown pass. After leading the Panthers to a 25-10 victory, the 43-year-old became the oldest starting quarterback to win a game in NFL history, and the third-oldest to start one. He has also thrown touchdown passes to 71 different players, a record since broken by Tom Brady. On Sunday October 28, coach John Fox named Testaverde the starting quarterback against the Indianapolis Colts. In that game, Testaverde led the Panthers in the longest opening drive for a touchdown in franchise history, consisting of 18 plays and lasting for 11 minutes and one second. Despite winning time of possession in the first half of the game, the Panthers entered the locker room under a 3-point deficit. In the second half, Testaverde left the field with a strained Achilles tendon, and was replaced by former Houston Texans quarterback David Carr. Ultimately, the Panthers lost 31-7. Reports said that Testaverde would be out for at least a week.