By Jim Maltzman: Oleksandr Gvozdyk has decided to retire from boxing after six years as a professional. The former WBC 175-pound champion Gvozdyk (17-1, 14 KOs) lost his title to IBF champ Artur Beterbiev (15-0, 15 KOs) in a unification fight on October 18 in Philadelphia. Gvozdyk still has a lot left in the tank, […]