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.

In a 5-round light heavyweight bout in the main event, Johnny Walker and Zhang Mingyang meet Saturday at UFC Fight Night 257 in Shanghai, China.

While many in the United States will be sleeping, the UFC will be on the ground in Shanghai with 12 fights on the docket. A loaded preliminary card begins at 3 a.m. ET while the main card begins at 6. Half of the bouts are projected to end inside the distance.