That’s the opinion of Gerry Francis who also believes defending champions Chelsea have got real problems.
United got off to a fast start last weekend thrashing West Ham 4-0 with new signing Romelu Lukaku netting twice.
“I think it will be out of three teams,” Francis told Sky Sports.
“I think it will be out of Manchester United, Man City or Tottenham.
“I don’t see any of the other teams (winning it), I think Chelsea have got real problems.
Romelu Lukaku (v West Ham, 2017)
“If you ask me to pick one out of the three, I’m going to go Man U then”
“Proven goalscorer, will come in with 20-odd goals for Manchester United, make a massive difference to them. They’re going to go close.
“If you ask me to pick one out of the three, I’m going to go Man Utd then.”
United return to action on Saturday when they travel to Swansea.
Tottenham face Chelsea on Sunday at their temporary home of Wembley while White Hart Lane gets redeveloped.