Manchester United have rejected a

double player-plus-cash deal for Paul Pogba from Barcelona, according to reports.

With just three days of the transfer window remaining Pogba's agent Mino Raiola is reportedly trying to engineer a move for the France international to move to the La Liga giants.

Pogba returned from his post World Cup holiday on Monday and Raiola has been in detailed discussions with Barcelona over the midfielder, according to various reports.

The Daily Mail claims that the club have rejected an offer from Barcelona of £44.6million plus Yerry Mina and Andre Gomes and United insist Pogba is not for sale.

However, it is worrying for United that Raiola appears to be trying to manufacture a move for the midfielder - and it is claimed he has been doing so with his client's blessing.

United only re-signed Pogba from Juventus two years ago for £89million, but, after a season of reports about a rift in his relationship with Jose Mourinho, there has been speculation he could leave the club this summer.

However, the report adds United are aware that Raiola's latest move could be a way to try and land the 25-year-old a bigger contract.

Alexis Sanchez is currently the highest earner at the club, earning £500,000 a week, and Raiola approached the club about a raise for his client after Sanchez made the move from Arsenal in January, adds the report.

Earlier, former Manchester United defender Rio Ferdinand warned the club not to sell France World Cup star Paul Pogba and instead to focus on strengthening the squad.

Ferdinand wants Pogba to stay and Spurs defender Toby Alderweireld to come in. Referring to reports that Pogba's agent, Mino Raiola, is looking at the Camp Nou as a possible new home for his player, Ferdinand said: "Don't you dare allow this ED... #MUFC is Pogba's home!! Silence these rumours ASAP & get @AlderweireldTob through the door."