Saying the case holds “massive importance for the future of online gaming across the country,” two pari-mutuel companies have asked the U.S. Supreme Court to block a 2021 deal giving the Seminole Tribe control over sports betting in Florida. The companies last week sought Supreme Court review of an appellate court’s decision upholding the deal, which could reap Florida at least $2.5 billion over the next five years and is also the subject of a legal challenge at the Florida Supreme Court. Lawyers for West Flagler Associates and Bonita-Fort Myers Corp. filed the petition at the U.S. Supreme Cou…