Watch Walt Harris vs. Aleksei Oleinik full fight video from on 4’s co-main event above, courtesy of .

For more on Harris vs. Oleinik, check out Peter Carroll’s live blog below.

Round 1: Harris explodes into action with a flying knee. Oleinik goes down after eating a left hand to the temple. After he hits the ground, Harris lands two more shots before the referee stops the fight just beyond the ten-second mark. Oleinik appears to have injured his leg as he exits the Octagon.

Official result: Walt Harris def. Aleksei Oleinik via KO (strikes) at 0:12 of R1