Henrikh Mkhitaryan is expected to be out for ten days after aggravating his thigh injury during Saturday’s defeat by Manchester City at Old Trafford.

Mkhitaryan, the Manchester United midfielder, suffered the initial problem, to his left thigh, during the international break. The 27-year-old, who signed for £26.3 million in July, was injured in a tackle by Marek Suchy during Armenia’s 3-0 defeat by the Czech Republic on August 31.

Despite suffering the injury, which caused the midfielder to be substituted, the United manager José Mourinho decided to hand Mkhitaryan his first start on Saturday in the derby, which United lost 2-1.

The Armenian performed poorly and was substituted at half-time for Marcus Rashford.

Subsequent scans have revealed that Mkhitaryan aggravated the injury in the defeat