Pogba hints at United unhappiness

Pogba, 25, returned to Old Trafford as a 2018 FIFA World Cup winner and captained the side to a 2-0 opening day victory over Leicester City.

READ: United sink Foxes on opening day

Despite showing tremendous maturity in his displays at Russia 2018 with France, there's been a growing sense of uncertainty over his long-term future at the Premier League giants.

Reports over his fractious relationship with manager Jose Mourinho has surfaced once again amidst the links with a sensational transfer to FC Barcelona.

And after the victory over Foxes, the Red Devils club-record signing gave no real indication of any long-term commitment to his current employers.

"If you're not happy, you cannot give your best," Pogba said, as quoted by BBC Football. "There are things I cannot say otherwise I will get fined.

When questioned about his level of performances with Les Blues, compared to his displays in the Premier League; "I am the same, but it's a different team, obviously.

"I still enjoying playing football but like I said, when you are comfortable or confident and are good in the head, it's going to be easier."