Gardner is a 6-foot-5, 224 pound redshirt sophomore from Douglas, Ga. Gardner replaces three-year starter Teddy Bridgewater, who left for the NFL after his junior season.
Gardner appeared in seven games last season, completing 8 of 12 passes for 112 yards and two touchdowns.
"I thought Will and outstanding fall camp," Louisville head coach Bobby Petrino said. "He demonstrated good decision-making and executed our offense."
- Scooby Axson