 Martirosyan felt he won the fight.On May 5th, 2018 Martirosyan fought unified Middleweight champion Gennady Golovkin at the StubHub Center in Carson, California after he was chosen as the late replacement for Canelo Álvarez when Canelo withdrew from the much anticipated Cinco De Mayo rematch in the wake of his failed drug tests for Clenbuterol.With only three weeks of preparation for the bout and almost two years since his last professional fight, Martirosyan faced long odds against the undefeated middleweight champion.