UFC 137 is a marquee event for the organization for a lot of reasons.
The pay-per-view event will be headlined by a welterweight tilt pitting MMA bad boy Nick Diaz and former two-time world champion BJ Penn.
However, one bout in particular will be appealing for the head honchos, as Japanese import Hatsu Hioki makes his organizational debut against The Ultimate Fighter veteran George Roop.
The submission specialist has been a staple in the featherweight division for a long, long time. Hioki holds notable victories over the likes of former Sengoku and Pancrase champion Marlon Sandro as well as former UFC title challenger Mark Hominick, having defeated the Canadian on two separate occasions.
So, will Roop rise to the occasion and best the world-ranked fighter, or will Hioki continue his winning ways en route to an imminent title shot?