Davide Petrucci: Man Utd and Sir Alex was like the world's best football university

Former Manchester United midfielder and FA Youth Cup winner Davide Petrucci discusses his time as a young player with the club. The Italian touches on his experience training with the senior players and also working with Sir Alex Ferguson. Petrucci joined United when they were the best team in the world and explains what made the difference for Ferguson and his players at the time in both the Premier League and Champions League.