While most in North America were fast asleep, Johnny Walker was putting in work. Walker scored a convincing finish in the main event of UFC Shanghai early Saturday morning. MORE: Fabian Edwards with dominating performance as PFL crowns new champions

Charles Johnson (18-7 MMA, 7-5 UFC) had a rough first round against the unbeaten Lone'er Kavanagh (9-1 MMA, 2-1 UFC). But late in the second round, while he was backing up from a Johnson attack, Kavanagh dropped his hands and Johnson drilled him on the button to put his lights out for the first loss of his career.