Manchester United are refusing to enter negotiations with PSG over a transfer for Paul Pogba this summer, according to reports.The Frenchman is out of contract in 2022 and it is believed he would be interested in joining PSG.However, French outlet Le Parisien - via GFFN - claims United have no desire to discuss a transfer this summer.That is despite the prospect of Pogba leaving on a free transfer.It seems United want to keep Pogba for this season, perhaps confident they can eventually convince him to sign a contract extension.PSG are currently tied up in their negotiations for Lionel Messi, who has left Barcelona.