Zlatan Ibrahimovic has backed Jose Mourinho to take Manchester United back to the summit of English football, despite agreeing with his manager that the current squad is not "good enough to be No. 1."

United are currently on a 20-match unbeaten run, and sit sixth in the Premier League table, but Mourinho continues to face criticism for a side that is seen to be underperforming given the club's lavish spending ahead of the season.

Ibrahimovic, however, believes the former Chelsea boss is overachieving given the circumstances, and has a "winning mentality" that will eventually filter through the whole squad.

"I think the coach is doing the absolute maximum with the team he has. 200 percent," Ibrahimovic told the Mail.