Miami’s “turnover chain” has become a charming detail in one of college football’s best stories – that of the Hurricanes’ national resurgence. The chain, glitzy and gold and featuring a gaudy orange and green Miami logo, has become fodder for announcers during broadcasts of Miami football games, as well as the subject of numerous stories. One that hasn’t been relayed during the fawning mentions of the chain during TV broadcasts: its creator, a South Florida jeweler named Anthony John Machado, was banned from interacting with North Carolina athletes at the start of the NCAA’s investigation into the UNC football program in 2010. UNC on Oct. 25, 2010, sent a letter of disassociation to Machado addressed to his store, A.J.’s Jewelry, in Cutler Bay, Fla. In the letter, Dick Baddour, who was the UNC athletic director at the time, wrote that Machado’s “involvement with one of our student-athletes has led to the NCAA declaring one of student-athletes permanently ineligible.” UNC that fall was in the early stages of a saga that began after Marvin Austin’s infamous tweet referencing bottle service at Club Liv, a well-known Miami nightspot. Austin, a former UNC player, was referencing a lyric from a rap song, but so began an NCAA investigation into impermissible benefits and improper relationships between agents, and their runners, and UNC football players.