January could prove a huge month for Atletico Madrid as their transfer embargo finally comes to an end.
The Rojiblancos had to endure a frustrating summer despite the signings of Vitolo and Diego Costa, who won't be able to register with them until 2019.
The only advantage of the ban was that it prevented Antoine Griezmann moving on from the Spanish capital despite being heavily linked with Manchester United.
While the Frenchman didn't want to leave the club in the lurch, it can't be ruled out that the two clubs will do business this coming summer.
Jose Mourinho remains in the market for a forward to play just behind Romelu Lukaku, so few would be surprised if he were to get in touch with Diego Simeone.
Before that, however, there looks to be a high chance that United and Atleti will be trading one player the other way.
Spanish publication AS report that a "deal is close to being agreed" for Ander Herrera to return to La Liga after Simeone sanctioned a move.
A deal is near
It's claimed the midfielder himself is also keen on the switch, which suggests he's now unlikely to sign an extension with United.
The Spain international's current deal expires at the end of the season, by which time he'll be available on a free transfer.
Herrera will be able to speak to clubs outside the Premier League from January.
United fans may have mixed feelings about his potential departure following his lacklustre performance in the 1-0 defeat to Chelsea, a result which saw Mourinho's men slip eight points behind Manchester City at the top of the table.
Given that they have been left short in his position on occasion, though, it seems likely they will be looking for reinforcements for last season's Player of the Year.
How much would United miss Herrera? Have your say in the comments.