From Grealish to Diomande, the 15 Most Valuable Signings of This Summer

With the summer transfer window closed, The Athletic's expert team selected the 15 most noteworthy signings of the summer based on three dimensions: player value, tactical fit, and narrative significance.

The list stretches from the Premier League to La Liga, featuring both established stars and promising young talents.

The two ends of the list: Grealish and Diomande.

Jack Grealish's inclusion was not surprising — the degree to which his technical characteristics fit into the team's system was a point repeatedly discussed by the experts. Yaon Diomande represents another direction: young and highly adaptable, with the transfer reflecting advance planning for the future squad.

The two players happen to represent the two extremes of this list: immediate impact and future potential.

Evaluation logic: it was not only about transfer fees. The expert team revealed that the criteria were not simply ranked by the size of the transfer fee, but instead considered three aspects: the probability of a player's adaptation to a new environment, the match with tactical needs, and the long-term strategic significance of the deal. This means some signings with lower fees but precise roles ranked ahead of larger transactions.

Cross-league perspective. The list covers multiple clubs from the Premier League to La Liga, reflecting a trend in this summer's window: teams are placing greater emphasis on the fit between players and coaching systems rather than simply pursuing big names. This more rational approach is reflected in the transfer details of several selected players.