Who is the strongest transfer window in history?

"Now, the player's contract is meaningless. Even if it is a seven-year long contract, it may be a piece of waste paper." - Pettit

The money-burning competition, the two major summer windows each lead the way

The 2025 summer window has ended, Liverpool signed Isaac on the transfer deadline. They spent an astonishing 483 million euros this summer, breaking the record of the summer window's king twice. Before Isaac joined, Flynnon, Kolkz, Werz, Ekitic and Leoni were in place one after another, which was a historical summer window. In the summer window of 2009, Real Madrid also completed an epic operation. They spent 2.6 euros to sign Ronaldo, Kaka, Benzema, Alonso, Albiol, Aveloa, Negredo and Granero, and the "Galaxy Phase III" set sail.

4 heavyweight players gathered together, and the 2009 summer window cannot surpass the 22}

two Golden Balls and a future Golden Balls, Liverpool's best player, Premier League No. 1, Serie A No. 1, and Ligue 1... If Bayern had not forced Ribery to stay, Real Madrid would have gathered the top stars of the four major leagues in the 2009 summer window. This is an unprecedented operation and is likely to become a future no one. Although it only spent 260 million euros, these players may be worth more than 800 million euros in the summer window of the season, considering inflation. Compared with Ronaldo, Kaka, Benzema, Alonso and others, Isaac, Ekitic, Wilz and others are still almost the same.