Club America have been hit with a three-point penalty for fielding an ineligible player on their bench for Saturday's 2-0 win against Atlas.
America named Federico Vinas on their bench and although the 22-year-old did not enter the match, Liga MX still doled out the penalty as he was not registered by the club.
The match was awarded to Atlas via a 3-0 forfeit, with America saying they will appeal the decision.
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What did America say?
In a statement posted on Twitter, the club took responsibility for the mistake and offered an apology to their fans, coaching staff and players for an "unacceptable" mistake.