Inter Miami announces the signing of Brazil midfielder Casemiro, but Major League Soccer says it is investigating allegations of “tampering” related to how the deal is completed. Multiple reports state that Casemiro’s MLS discovery rights were held by the LA Galaxy, which would normally restrict Inter Miami’s ability to negotiate or finalize the transfer directly. According to the Independent and Yahoo Sports, a settlement is reached that allows Inter Miami to complete the signing despite those discovery-rights constraints.

BBC Sport and The Athletic report that the league’s review centers on whether Inter Miami followed MLS rules in the process. The Guardian adds details on the contract structure: Casemiro signs a deal that is effectively one year, runs through the end of the 2027 MLS “sprint season,” and includes an extension option that could keep him with the club through the 2028–29 season. Yahoo Sports also reports that Casemiro is under contract through the end of next year’s sprint season with an extension option through June 2029. The investigation is underway as the signing takes effect.