Inter Miami is under investigation by Major League Soccer (MLS) over potential tampering related to the signing of Brazilian midfielder Casemiro. The player joined Inter Miami as a free agent after departing Manchester United, signing a one-year contract through the conclusion of the 2027 “sprint season.” The club also holds an option to extend the contract until 2029.

MLS confirmed that Inter Miami acquired Casemiro’s discovery rights from LA Galaxy. Under MLS rules, most incoming player signings from outside the league involve a discovery process, whereby teams maintain a list of up to five players for whom they have priority to negotiate. While having discovery rights does not guarantee exclusive signing rights, it does mean that other MLS clubs must negotiate with the team holding those rights before completing a transfer.

The nature of the league’s investigation has not been disclosed in detail. MLS has not specified whether the inquiry concerns potential negotiations between Inter Miami and Casemiro before the club secured his discovery rights from LA Galaxy, or if it relates primarily to the manner in which the discovery rights themselves were acquired.

Casemiro’s move to Inter Miami represents a significant signing for the club as it prepares for the upcoming 2027 season, which will mark MLS’s transition to an autumn-to-spring calendar format. The investigation underscores the league’s ongoing scrutiny of transfer protocols and compliance with established mechanisms governing player acquisitions. Inter Miami and MLS have not provided further commentary on the status or timeline of the investigation.