Manchester United were quickest out the trap in January - snapping up Alexis Sanchez from under the noses of their rivals.
The Chilean looked set to sign for Manchester City before Jose Mourinho swooped, throwing huge money at the want-away forward.
Henrikh Mkhitaryan moved in the opposite direction, and to everyone, it appeared that Manchester United had pulled off the biggest transfer coup of the season.
But extraordinary allegations from Spain are now suggesting that the Old Trafford club aren't as keen on the deal as they once were.
In fact, publication El Pais is reporting that United board members recently met with rival Premier League executives and confessed they 'regret' the signing.
Sanchez hasn't exactly hit the ground running at Old Trafford and has netted only once in his seven appearances this season.
But there is no denying his world-class ability, and United are yet to see the best of the Chilean, who netted 30 times in all competitions for the Gunners last season, despite spending the majority of it looking for a way out.
According to El Pais, board members gave three reasons as to why they're having second thoughts over the signing at the secret meeting.
The first reason United are said to 'regret' the signing is that the Chilean would have been considerably cheaper had the club waited until the summer to sign him.
Manchester United was forced to pay huge signing-on and agent fees to land their man and lost Mkhitaryan in the process.
Of course, had the Red Devils waited until the end of the season they would have been involved in an auction for the player, alongside a number of other massive clubs, and there is every possibility they would have missed out.
The second alleged reason is to do with Sanchez's huge wages.
Before the Chilean arrived there was a structure in place at Old Trafford, and his eye-watering wages have supposedly caused tension in the dressing room.
Paul Pogba is one player allegedly looking for his wages to be increased so that they match the Chilean's bumper deal.
While the Chilean still has a lot to offer, he is 29 years old, and very much at the peak of his playing career.
He therefore only has a few years left in which he will be performing at the highest level before he loses half a yard of pace.
And, according to the report, it is these three issues combined that has the United board questioning whether they made the right decision in signing the former Barcelona and Arsenal man.