United reject Barcelona's complex part-ex deal for Pogba
The Catalan outfit are believed to have set their sights on pairing Pogba with new signing Arturo Vidal in the engine room at the Camp Nou, though lack the funds to secure an all-cash deal.
That has led them to getting creative, hence the attempt to use two of their fringe stars as bait in a part-exchange deal.
United have shown a significant interest in Mina in recent weeks, though reports linking them with Gomes have been sparse.
However, according to the aforementioned source the bid has been rejected, with United not looking to part with their star man this summer.
Pogba made the move to Old Trafford back in 2016 for a fee of some £93.25m, though he has often been criticised for failing to produce his best since re-joining the club.
Nevertheless, the United coaching staff believe there is a lot more still to come from the 25-year-old and with three years left on his contract, Pogba appears to be going nowhere.
The fact that there is little over two days remaining in the transfer window for English clubs is likely to have contributed to United's decision, with there realistically not being enough time left to find a high-quality replacement for the Frenchman.