The Wild 2025 Summer Transfer Window: Ranking the Top 10 Biggest Deals

The 2025 summer transfer window was one of the most explosive in football history, filled with record fees, surprise destinations, and bold rebuilds. Across Europe, clubs reshaped their squads in ways that will shape the new season, with the Premier League once again leading the way in spending.

No team dominated the headlines more than Liverpool, who completed three of the ten biggest deals of the summer. The signing of Alexander Isak from Newcastle on Deadline Day for £125m smashed records, while German star Florian Wirtz arrived from Bayer Leverkusen for £100m (rising to £116m). Add Hugo Ekitike from Eintracht Frankfurt for £69m, and it is clear the champions are doubling down on attacking power to stay ahead in both England and Europe.

Manchester United were not far behind, launching their own aggressive rebuild. They secured Benjamin Šeško from RB Leipzig (£66.2m rising to £73.4m), Bryan Mbeumo from Brentford (£65m rising to £71m), and Matheus Cunha from Wolves (£62.5m). Together, these signings signal intent, but they also come with pressure, as United look to close the gap to their biggest rivals.

Elsewhere, there were plenty of surprises. Victor Osimhen shocked the football world by leaving Napoli for Galatasaray in a £64.8m move, boosting the profile of the Turkish giants. Bayern Munich raided Liverpool for Luis Díaz (£60.5m rising to £64.8m), while Arsenal won the race for Eberechi Eze, paying £60m to prise him away from Crystal Palace. Newcastle, having lost Isak, quickly turned to Nick Woltemade from Stuttgart for £64.7m.

All told, the 2025 summer window was not only expensive but transformative, with clubs across Europe making bold moves to reshape their futures. Below, we break down the 10 biggest transfers of the summer, including the players, their clubs, and the fees involved.

1. Alexander Isak

Newcastle United → Liverpool – £125m
Liverpool’s record-breaking deal finally came through on deadline day after a long-running saga. Isak becomes the centerpiece of their attack, a massive statement following their Premier League title win. The transfer also forced Newcastle to reshape their forward line.

2. Florian Wirtz

Bayer Leverkusen → Liverpool – £100m (rising to £116m)
Liverpool doubled down with another blockbuster signing, snapping up Germany’s brightest young playmaker. Wirtz adds creativity and dynamism to Slot's midfield, strengthening an already dominant squad.

3. Hugo Ekitike

Eintracht Frankfurt → Liverpool – £69m (rising to £79m)
Ekitike’s arrival was accelerated by Liverpool’s insistence on landing a new forward, especially after Newcastle rejected their approaches for Isak earlier in the summer. Frankfurt initially resisted, but the champions’ determination got the deal over the line.

4. Benjamin Šeško

RB Leipzig → Manchester United – £66.2m (rising to £73.4m)
United turned to Šeško after missing out on other striker targets, including Liam Delap and Viktor Gyökeres. At just 22, the Slovenian carries big expectations, especially after the mixed success of Rasmus Højlund. This is a gamble, but one the club hopes will finally solve their No. 9 problem.

5. Bryan Mbeumo

Brentford → Manchester United – £65m (rising to £71m)
Mbeumo’s drawn-out move ended with United eventually meeting Brentford’s valuation. The versatile forward offers pace, directness, and Premier League experience, something United have been crying out for. Still, the hefty price tag will bring pressure to deliver immediately.

6. Victor Osimhen

Napoli → Galatasaray – £64.8m
After years of links to Chelsea and other top Premier League sides, Osimhen’s move came as a surprise. Rejecting Saudi Arabia’s riches, he instead chose to spearhead Galatasaray’s ambitious project. While unexpected, it’s one of the most high-profile arrivals in Turkish football history.

7. Nick Woltemade

Stuttgart → Newcastle United – £64.7m (rising to £69m)
Newcastle acted quickly to secure Woltemade, paving the way for Isak’s record move to Liverpool. The towering striker arrives with big shoes to fill and high expectations from St. James’ Park. The deal underlines Newcastle’s continued focus on young talent for their project.

8. Matheus Cunha

Wolves → Manchester United – £62.5m
The Brazilian forward was high on United’s radar all summer, though budget concerns threatened the transfer. Eventually, Sir Jim Ratcliffe sanctioned the deal, making Cunha one of the priciest arrivals at Old Trafford.

9. Luis Díaz

Liverpool → Bayern Munich – £60.5m (rising to £64.8m)
Bayern swooped in to lure Díaz from Anfield, strengthening their wing options after recent departures. For Liverpool, his exit helped balance the books amid their massive spending spree. The Colombian now faces the challenge of revitalizing Bayern’s attack in the Bundesliga and Europe.

10. Eberechi Eze

Crystal Palace → Arsenal – £60m (rising to £67.5m)
Arsenal beat Tottenham to the signature of one of the Premier League’s most exciting attacking midfielders. Eze brings flair, ball-carrying ability, and end product — all crucial for Arteta’s evolving side. The move marks another ambitious step in Arsenal’s pursuit of domestic and European glory.