Manchester United fear Patrick Dorgu could be out for a prolonged period due to the muscle injury he sustained in Sunday’s 3-2 win at Arsenal, in what would be a blow to Michael Carrick’s resurgent side.

While tests are still to confirm the prognosis there is concern the Dane has a hamstring problem that will cause him to miss several weeks, with some reports stating his absence may be more than two months.

Dorgu has been a key factor in United’s upturn, scoring in each of Carrick’s opening two matches, so to lose the 21-year-old striker against Arsenal came after an equally important goal in United’s 2-0 victory over Manchester City the previous weekend. His finish was also decisive in the 1-0 win over Newcastle on St Stephen’s Day, making it three goals in his last seven appearances. – Guardian