UFC 220 has started with a bang.
Dagestan fighter Islam Makhachev brought the early fireworks, cleanly knocking out Gleison Tibau 57 seconds into the first fight of the night.
"Phenomenal left hand by Makhachev," commentator Joe Rogan said. "A picture perfect punch."
Makhachev demanded a top-15 ranked fighter in his next outing after the win. Tibau, who was fighting for the first time since 2015, has now lost three straight.