TUCSON, Ariz. (May 1, 2019) — Fazliddin “Fayzi” Gaibnazarov is on the fast track to world title contention. Gaibnazarov, a 2016 Olympic gold medalist for his native Uzbekistan, will face the toughest — and tallest — test of his career against the 6-foot-3 Mykal “The Professor” Fox in a 10-round super lightweight showdown from the …