The Liverpool midfielder, who has already served a mandatory one-match suspension for his red card at Old Trafford almost two weeks ago, admitted a Football Association charge of improper conduct levied for his angry refusal to leave the field.
Liverpool are pondering an appeal against the severity of the punishment and a remorseful Mascherano told the Daily Mail: "I apologise to everyone. I made a mistake and I regret this mistake. It was my fault."
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