But one knowledgeable observer said a sure bet to win one of those licenses is Gila River Hotels & Casinos, which last week announced a partnership with BetMGM. The Arizona Department of Gaming has until the end of this month to whittle down a list of 15 tribes competing for 10 available licenses allowing them to offer gambling on professional and college games both online and at retail, or brickand-mortar, sites. 9, the Gila River Indian Community is poised to become one of the big players after teaming up with one of the gambling world’s biggest operators. As Arizona prepares to launch sports betting Sept.