Henrikh Mkhitaryan is a doubt for the Manchester derby after the Armenian FA confirmed the midfielder has suffered a thigh injury which could take around 10 days to heal. Mkhitaryan picked up the knock in an off-the-ball collision with Marek Suchy during the first half of Armenia's friendly with the Czech Republic on Wednesday and was taken off as a result.  Tests results on the 27-year-old's thigh injury were "not encouraging" and he now faces a race against time to be fit for one of United's biggest games of the season against Pep Guardiola's Manchester City at Old Trafford on September 10, live on Sky Sports 1.

The Armenian FA ruled Mkhitaryan out of their game against Denmark on Sunday and he will now return to Carrington to be assessed by United's medical staff. Three months' half-price Sky Sports. A statement released by the Armenian FA read: "As reported, senior national team captain Henrikh Mkhitaryan received an injury against Czech Republic and as a result was unable to continue the match. "Mkhitaryan has had a medical examination in a clinic in Mlada Boleslav. Unfortunately, the results are not encouraging.

"Mkhitaryan was found to have an injury in the lower third of the left thigh muscle. Such injuries usually require a week to 10 days to heal, which means that Mkhitaryan will miss the Denmark-Armenia match on September 4."