By Justin Barrasso A rematch with a tinge of controversy ultimately resulted in the 32-year-old’s triumphant return to the Octagon. View the original article to see embedded media. Last night at UFC 273, Aljamain Sterling crowned himself the undisputed UFC bantamweight champion. And he did it his way, capitalizing on a superior grappling arsenal to overcome fierce rival Petr Yan. “This time, I did it the way I always wanted,” said Sterling. “I’ve felt like a champion for a long time, but this put a stamp on it.” Returning after a 13-month absence from the sport, Sterling (21-3) defeated Yan by…