Henrikh Mkhitaryan has added six pounds of muscle to his frame since joining Manchester United.

The 27-year-old was exiled by the United chief for two-and-half-months because he “wasn't ready" to play in key fixtures.

But the ex-Dortmund winger has been coming in on his days off for extra gym and weight sessions, says The Sun.

He impressed Jose Mourinho with his attitude - giving up his weekends to prove the United backroom staff wrong.

An Old Trafford insider revealed: "United have kept close tabs and the feeling is his extra strength will be a huge bonus to him.

"He impressed with his commitment and surprised them by coming in to pump some iron and get more running into his legs."