UFC Fight Night 257 (ESPN+) takes place Saturday, and you can join us for live round-by-round coverage and official results beginning at 3 a.m. ET (midnight PT). UFC Fight Night 257 takes place at Mercedes-Benz Arena in Shanghai.

Johnny Walker ended a skid of two straight knockout losses by scoring a shocking knockout of his own in a comeback win against Chinese light heavyweight Zhang Mingyang in the main event of UFC Fight Night in Shanghai.

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.