Sugar' Sean O'Malley (13W-1L-0D) is one of the most-liked characters in all of UFC. On Poirier vs. McGregor's undercard, he goes against Luis Smolka (17W-7L-0D). On paper, Smolka shouldn't be a big challenge for O'Malley. They both prefer fighting standing up, but O'Malley looks like a much better, stronger, faster, and longer-reach striker. On the ground, the advantage is also for O'Malley. He is a brown belt in BJJ, while Smolka is a brown belt in Judo. Likely the only serious worry and unknown factor for this fight is that O’Malley has twice suffered an injury to his right leg since he started in the UFC. The first time O'Malley injured his leg was during his fight with Andre Soukhamthath (14W-8L-0D)--though he went on to win this fight by a decision. When he fought Marlon Vera (16W-7L-1D), he injured the same leg, and the fight was stopped by the ref: Vera won by TKO. Reports on the injuries suggest that the two incidents were not connected, so perhaps this was just bad luck for Sugar.