AS: Right and left full-backs account for two of the top three seats with the highest average transfer fees in the summer window, second only to wingers

October 16th, according to the "Aspen" report, with the continuous evolution of the tactical system, coaches have also put forward new demands for full-backs. As a result, full-backs have become two of the three positions with the highest average transfer fees in the summer transfer market.

The full-back position has never received much attention in the transfer window, but this situation is changing. According to TransferRoom data, right-back and left-back are two of the three positions with the highest average transfer fees in the summer transfer market, second only to wingers. Specifically, left-backs saw the largest increase in average transfer fee compared to the previous transfer window (139%), followed by wingers (94%) and right-backs (86%).

The role of full-backs has changed in recent years. As well as the traditional quick-crossing full-backs, the football world has adapted to new roles. Liverpool under Klopp promoted Alexander-Arnold to the core of the team's system, while Guardiola brought important changes by inverting the concept of full-backs, and Arteta also followed this idea, using players such as Zinchenko and Skelly.

Last season, Paris Saint-Germain led by Luis Enrique won the Champions League. Nuno Mendes and Achraf became key figures, which further enhanced the value of full-backs. Historical experience shows that champions often lead the way, and perhaps it is from here that the value of full-backs is re-evaluated.