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.

Tonight's UFC Fight Night looks to inject some ferocious Chinese talent into the light heavyweight division. Prolific finisher Mingyang Zhang has ended all 19 of his wins inside the first round, and standing in the way of a top spot in the 205 division is perennial contender Johnny Walker.

For all of the hype surrounding first-round knockout artist and Chinese light heavyweight prospect Zhang Mingyang, all it took was a second-round rally from the always unpredictable Johnny Walker to provide a heat check during Saturday's UFC Fight Night main event in Shanghai.