United hoped the signing of Zirkzee, 23, would contribute towards a new wave of young, attacking talent, alongside Rasmus Hojlund, Amad Diallo, Alejandro Garnacho and Marcus Rashford. Since scoring the winner on his debut against Fulham, however, the striker has struggled to make an impact for a team that looks bereft of form and confidence. Only Napoli have scored fewer goals than Juventus in the top six of Serie A and they could look to tempt Zirkzee back to Italy as they aim to maintain a challenge at the top of the table.