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Lionel Messi is under investigation by the MLS Disciplinary Committee following an off-the-ball confrontation with Quinn Sullivan during Inter Miami's 2-2 draw against Philadelphia Union. Video footage captured the Argentine striking the back of his opponent's head, leaving the Herons captain vulnerable to a potential fine or a one-game ban.

The Union youngster picked up a silly red, but his act wasn't the only slightly bizarre incident in Major League Soccer's midweek slate

Philadelphia Union prodigy Cavan Sullivan received the first red card of his career during a chaotic 2-2 draw against Lionel Messi's Inter Miami. The Manchester City-bound 16-year-old was sent off in deep stoppage time after rushing to defend his brother during a wild touchline brawl.

Philadelphia Union are reportedly set to bring USMNT defender Mark McKenzie back to MLS, agreeing a $2.5 million deal with Toulouse, according to The Athletic. The defender, who is entering the final year of his contract, will join the Union in January on a Designated Player deal.