The valuation fallers of summer 2026 tell two different stories

Six names dropped hardest in this month’s snapshot: Emmanuel Agbadou (-75.6%, €44.3M to €10.8M), Pio Esposito (-44.9%, €87.8M to €48.4M), Lennart Karl (-27.5%, €112.0M to €81.2M), Rayan Cherki (-20.2%, €163.3M to €130.4M), Kylian Mbappé (-14.3%, €209.8M to €179.8M) and Lamine Yamal (-11.8%, €261.0M to €230.3M). Lumping these together as "players losing form" would miss what’s actually happening in at least three distinct cases.

Agbadou’s collapse is a league-context correction, not a form issue — a move (or drop in competitive level) that removes a player from a top-five league’s minutes pool hits the valuation far harder than any dip in per-90 output would, since the model anchors partly on the competitive level of a player’s current minutes. Esposito’s fall looks similar in shape: a breakout run of minutes at Inter that isn’t being sustained now that squad rotation has returned him to a smaller share of appearances.

Mbappé and Yamal are a different case entirely — both remain among the most valuable players in the dataset, and a double-digit percentage drop off a €200-260M base is a far smaller absolute swing than it looks. Yamal’s dip lines up with a stretch of reduced minutes this spring; the model’s recency weighting picks that up before a full season’s stats would average it out. Neither is evidence of a talent decline — they’re evidence that the model reacts to a real dip in playing time faster than a season-long stats page does, which is exactly the point of tracking valuation month to month instead of only at season’s end.