Here's a summary of the main transfer market developments to have taken place.
Jose Mourinho has extended his contract with Manchester United to 2020, an extension of one year.
Borussia Dortmund are keeping quiet over Pierre-Emerick Aubameyang's future, refusing to answer questions on whether he'll join Arsenal.
Athletic Club are considering Inigo Martinez are a replacement for Aymeric Laporte, who is set to move to Manchester City.
Atletico Madrid are trying to finalise Nico Gaitan's exit, with Zenit a possible landing spot.
Fred has offers from Manchester United and City, so he must pick which half of Manchester he'd like to play for.