Concern is growing that Leny Yoro, Manchester United’s new £52m ­signing, faces a lengthy layoff with a suspected metatarsal fracture in his left foot. Having left the pitch injured ­during the 2‑1 pre-season defeat against ­Arsenal in Los Angeles on Satur­day, the French centre-back was filmed on crutches, wearing a protective boot on his left foot, his leg bandaged below the knee, and fears are growing that he may be out for at least two months. Signed from Lille a fortnight ago, Yoro was playing his second United game having impressed in his first, but went to ground in the 34th minute and required treatment on the pitch before hobbling off shortly afterwards. If he is ruled out for a ­prolonged time it will represent a blow to Erik ten Hag, who is seeking major improvement after the club’s worst Premier League finish of eighth last season. His squad had 66 injuries last term and, before the Arsenal friendly, he noted that, given the ­players’ workload, a repeat could occur. United refused to comment when contacted, but Ten Hag is expected to address the matter on Thursday, when he next speaks publicly.