Major League Soccer says it is investigating allegations of tampering by Inter Miami after the club signed Brazil midfielder Casemiro.

Casemiro started every game at the World Cup as Brazil progressed to the last 16 Major League Soccer says it is investigating allegations of tampering by Inter Miami after the club signed Brazil midfielder Casemiro. On Wednesday, Miami announced they had signed the 34-year-old - who left Manchester United at the end of last season - on a deal that runs to the end of the 2027 MLS campaign, with an option to extend until June 2029. But moments later, the MLS released a statement saying it was "reviewing a tampering allegation" against the club. "The league is gathering all relevant information and will refrain from further comment until the review is complete," it added. "While Inter Miami CF and the LA Galaxy have reached a settlement for the discovery priority [first rights] to sign Casemiro, the terms will be released upon conclusion of the tampering investigation." The investigation concerns Casemiro's discovery rights, an MLS regulation that gives a specific club first refusal over a player should they want to join. A club may have up to five players on their discovery list at any time and can add or remove players.