Glendale, Ca. ---  US Olympian, undefeated #1 ranked Vanes "The Nightmare" Martirosyan of Glendale, Ca is training at the Glendale Fighting Club on Thursday.  Martirosyan is preparing to take on Mexican knockout artist Saul Roman in a world title elimination bout, Saturday, June 4 at the Staples Center in Los Angeles on the undercard of Zbik vs Chavez Jr.. Top Rank promotes this HBO Boxing After Dark event in association with Zanfer Promotions, Universum Media Network, Tecate and Staples Center. --- Photos - Chris Fraina/Top Rank.