Astronomical Fees and Delayed Deals — How the Summer Mercato Is Heating Up

The 2026-27 summer transfer window is proving to be one of its most eventful editions, with top European clubs allocating nearly €1.3 billion to squad reinforcements — a roughly 15% increase compared to previous windows. AtlasGoal takes a tour through 10 storylines that have defined this market, from deals already sealed to rumors still hanging in the balance.

1. Elliot Anderson to Manchester City: the former Nottingham Forest player completed his move to Manchester City for £116 million, becoming the fourth most expensive transfer in football history and, briefly, the most expensive British footballer ever.
2. Morgan Rogers to Chelsea: the English international left Aston Villa for Chelsea in a deal worth £117 million, one of the most expensive in Premier League history.
3. Sandro Tonali to Tottenham: the London club signed the Italian midfielder from Newcastle United in a deal reaching up to £100 million with add-ons, one of the biggest transfers ever completed by a club outside the Champions League.
4. Marco Palestra to Chelsea: the Blues signed the highly rated Italian defender from Atalanta for around €60 million, on a contract running through 2033.
5. Christos Tzolis to Arsenal: a record €40 million deal from Belgian side Club Brugge to Arsenal, the most expensive transfer in Belgian league history.
6. Karim Adeyemi to Barcelona: the German forward's move from Borussia Dortmund to Barcelona for €22 million, plus add-ons of up to €7 million.
7. Dusan Vlahovic's uncertain future: football watchers await the fate of Juventus's Serbian striker, whose contract is nearing its end, amid talk of interest from Champions League-eligible English clubs.
8. Manchester United's dream target Felix Nmecha: the Red Devils believe this summer presents the perfect opportunity to prise the German midfielder away from Borussia Dortmund, though no agreement has been reached yet.
9. Cole Palmer — a return to Manchester? reports have linked Manchester United with a move for Chelsea's English star, a transfer that looks nearly impossible given his current standing at the Blues.
10. Waiting for the billion-euro transfer: despite all these staggering figures, Neymar's 2017 move from Barcelona to PSG for €222 million remains the most expensive in football history, while some financial analyses predict the market's first billion-euro transfer will arrive by 2031.