The European transfer window is now closed and lots of money was splashed out. Here are the 10 most expensive deals that took place.
Click through the gallery to view the most expensive deals of this transfer window.
Kevin De Bruyne's €74 million deal ended up being the most expensive transfer of the window.
Angel Di Maria's €63 million move from Manchester United to Paris Saint-Germain was the second biggest of the window, just slightly ahead of Raheem Sterling's €62.5 million transfer.
Anthony Martial's €50 million deadline-day deal was the fourth most expensive move, while Christian Benteke's €46.5 million transfer sits in fifth position.
Nicolas Otamendi was the most expensive defender of the window, ending up in sixth position overall after his €44.6 million move to Manchester City.
Firmino, who was an early contender for the summer's most expensive signing, finished in seventh position with €41 million, ahead of Arturo Vidal with €37 million and Julian Draxler with €36 million.
The final and 10th position is shared between Atletico Madrid's Jackson Martinez, Real Madrid's Mateo Kovacic and Manchester United's Morgan Schneiderlin, who all cost €35 million.
Who do you think was the best signing of the transfer window? Have your say in the comments section below.