USF announced Tuesday it will hold its annual spring football game April 14 on campus at Corbett Stadium, site of the previous four spring contests.Kickoff is at 2 p.m. Admission is free. The game will be broadcast live — via the USF Radio Network — on 820-AM.The Bulls begin spring drills under second-year coach Charlie Strong on March 5. After three practices, they'll adjourn for spring break (March 11-17) then return for the last 12 spring workouts starting March 20. As of now, only the spring game has been reported as a public workout.USF also has announced its pro day, potentially one of the more bustling ones in program history, will be held March 26 at the Morsani Practice Complex.