 On March 21, 2014 he appeared on ESPN's Goossen Tutor Promotions, defeating Mario Antonio Lozano via unanimous decision after 10 rounds in a fight for the vacant WBO Inter-Continental light middleweight title.On February 17, 2015 Showtime announced that Martirosyan would appear on a doubleheader at the Palms Casino Resort in Las Vegas on March 28 against Jermell Charlo (25-0).The fight was contested over 10 rounds.