The Dutch midfielder sustained the injury during Barcelona's training session ahead of their La Liga clash against Villarreal. Initial tests suggest a muscle tear that could keep him sidelined for up to four weeks, potentially causing him to miss seven matches across all competitions.
De Jong's absence is a significant blow for Hansi Flick, who was just starting to have a fully fit squad available. The captain would miss the Copa del Rey semi-final second leg against Atletico Madrid, the Champions Round of 16 tie, and several La Liga fixtures, as well as the upcoming international break with the Netherlands.