 Otsuka was pitted against Marco Ruas, a Brazilian luta livre exponent from the Ruas Vale Tudo, while Alexander himself represented his home promotion Battlarts.Going against the pundits's judgement, Otsuka showed his skill and tenacity when he managed to take Ruas down and perform ground and pound through his guard, as well as later defending a fully locked rear naked choke to the end of the round.At the second one, Otsuka took Ruas down again and continued throwing punches, drawing blood from Ruas's face, and finally making the doctors call the fight.