Johnny Walker admits Octagon rust slowed him early but he recovered to score a brutal second-round TKO over Zhang Mingyang at UFC Shanghai.

Johnny Walker pulled off an unexpected upset win to spoil Zhang Mingyang’s homecoming in the UFC Shanghai main event on Saturday. After eating some hard shots on the feet and on the ground in the opening round,

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.