And it's down to two huge factors.

Paul Pogba is the most talked about player at the moment. The Frenchman's rocky relationship with Jose Mourinho has taken center stage after having clashed several times at the club, with the midfielder eventually being stripped of the vice-captaincy to further fuel the Old Trafford exit rumors.

The latest fallout was clear for the naked eye to see. Their most recent bust-up was caught on camera during training, with the two exchanging words over the World Cup winner's Instagram post during the club's embarrassing League Cup loss to Derby.

So the path for the 25-year-old to join Barcelona, whom he has heavily been linked with, should be clear, right? According to a number of sources, it is not.

According to the Telegraph, the likelihood of the Blaugrana affording Pogba is close to zero. The Red Devils will probably demand in excess of $131M (£100M) for their record signing, as he is under contract until 2021.

The British news outlet predicts that the Catalan giant can't afford to pay that fee all at once in January. That amount could be paid if Barcelona spreads the fee over the course of a few years, but Man United is unlikely to make things easy for the French talent to join a European rival.

Throw in Pogba's high wages and Mino Raiola's notorious commission fees and landing the Old Trafford ace will become more and more difficult. Real Madrid, Juventus, and PSG might consider swooping in for the midfielder, but Barcelona's finances will prohibit them especially since their focus in the transfer market is elsewhere.

Mundo Deportivo reports that priority number one for the Camp Nou side is Frankie de Jong. The Spanish Primera Division champion acknowledges that they won't be able to afford both the Ajax starlet and Pogba and will thus sacrifice signing the Frenchman for the 21-year-old Dutchman.