Manchester United have acted quickly to news of Lionel Messi demanding a transfer from Barcelona.

Sport says Manchester United and PSG have already pushed to look to sign the 33-year-old.

The report details that Messi would be keen to join former team-mate Neymar, as well as Kylian Mbappe, at the Ligue 1 champions, who lost in the Champions League final on Sunday to Bayern Munich.

The arrival of Messi would form a sensational front three trio at the Parc des Princes, as they look to go a step further in Europe next season.

Additionally, United have reportedly made contact with Messi's representatives, including his father and agent Jorge, as have Serie A side Inter Milan.

Manchester City are also in contact as Messi's lawyers push for a release from his Barca contract.