Given the context of this card's artwork (showing a player being replaced with another one) and some of its other TCG names ("Tactiques de Rotation U.A.", French for "U.A. Rotation Tactics"; "U.A. Tática de Contra-ataque", Spanish for "U.A. Counterattack"), the word "turnover" in this card's English name doesn't seem to be defined as losing possession of the ball in sports, but rather the replacement of people (players).
Given this card's French name, this card appears to reference the squad rotation system technique used in some sports.