LAS VEGAS -- ALJAMAIN STERLING, arguably the best bantamweight in UFC history, casually walks into a downtown apartment complex in phenomenal spirits. He's about to engage in one of his favorite pastimes -- an activity that challenges his mind and resolve unlike anything else. It can play tricks on him, give him a sense of confidence, mere moments before a sudden defeat. It requires him to always be one step ahead and instantly recover from any misstep.
Sterling isn't about to fight in the Octagon. He's about to play chess.
"It's very addicting, man," Sterling says.