With the 2018 FIFA World Cup now finished, the transfer market is heating up, with Cristiano Ronaldo's move to Juventus the most discussed transfer to date. However, the Portuguese's €100 million switch is not the most expensive deal of the window so far.
Click through the gallery above to see the 11 costliest deals of the window so far, according to Transfermarkt.
However, Kylian Mbappe's move from AS Monaco to Paris Saint-Germain, after his loan deal was made permanent on 1 July, cost a whopping €180 million (R2.82 billion).
Thomas Lemar's €70 million (R1.1 billion) transfer from AS Monaco to Atletico Madrid completes the three most expensive deals to date in this window.
Riyad Mahrez became the Africa's second costliest player in history after completing a €67.8 million (R1.06 billion) move from Leicester City to Manchester City.
The Algerian winger is followed by Alisson Becker after Liverpool made the Brazilian the most expensive goalkeeper in history following his switch from AS Roma. The Serie A side has confirmed that the Reds will pay an initial fee of €62.5 million (R981 million), which could rise to €72.5 million (R1.14 billion) depending on performance-related add-ons.
Manchester United, their crosstown rivals City and Real Madrid have also completed signings that appear among the most expensive transfers of the window so far, and you can find all of them in our gallery.
Note: The information in this article is based on Transfermarkt information.
Which transfer do you think has been the best piece of business so far? Have your say in the comments section below.