HOUSTON—Charles Oliveira claimed the UFC lightweight title Saturday night, stopping Michael Chandler with a barrage of punches early in the second round at UFC 262. Oliveira (31–8) earned his ninth consecutive victory in dramatic fashion, finishing Chandler (22–6) with a series of precise strikes to claim the belt vacated by Khabib Nurmagomedov’s retirement. After both fighters traded big shots in a back-and-forth opening round, Oliveira abruptly dropped Chandler with a left hook in the opening seconds of the second round. The Brazilian veteran pursued Chandler around the perimeter of the cage before dropping Chandler again with a left hook and finishing with punches on the ground just 19 seconds into the round. “I told you I was going to knock him out, and I came and knocked him out,” Oliveira said through a translator. “I’m proving to everybody I’m the lion of lions.” Oliveira appeared to be in serious trouble …