Yoro suffered the injury during the first half of United's pre-season clash against Arsenal on Saturday. The Frenchman could now be out for the entirety of August and September in what is an unfortunate way for his career in England to begin.
The Red Devils won the race to sign Yoro thanks to a bid worth £52 million ($67m), which neither PSG nor Real Madrid were willing to match. L'Equipe's report suggests PSG had done their homework on the 18-year-old, though, and part of the reason why they pulled out was due to his feet being a potential weak point.