Original sentence: A few days later, Gimnasia was eliminated from the Copa Sudamericana by the Chilean Colo Colo, following a quarter final match where a player of Gimnasia was injured by Chilean supporters .. Due to Gimnasia's rough play in the second leg of the quarter finals, Argentine Football Association's president Julio Grondona wrote a personal letter to the president of the ANFP (the Chilean football federation) apologizing for the "roughness" of the Gimnasia players
Edited sentence: A few days later, Gimnasia was eliminated from the Copa Sudamericana by the Chilean Colo Colo.Due to Gimnasia's rough play, Argentine Football Association's president Julio Grondona wrote a personal letter to the president of the ANFP (the Chilean football federation) apologizing for the "roughness" of the Gimnasia players