MIKE KEEGAN IN MONACO: UEFA is threatening to seek criminal proceedings against Gianni Infantino as they continue their efforts to oust the FIFA president.

The European governing body for soccer is preparing to file a complaint against Infantino for “criminal mismanagement,” according to court documents in the U.S.

UEFA is preparing a criminal complaint against FIFA President Gianni Infantino in Swiss courts for possible financial mismanagement over his failed plan to sell future World Cup…