Fights fans reckon Joaquin Buckley may have pulled off the greatest knockout in UFC history.
The 26-year-old delivered a spectacular spinning back kick to the head to floor Impa Kasanganay in Round 2 of their bout on UFC Fight Island in Abu Dhabi.
Kasanganay blocked an attempted kick and grabbed Buckley's left ankle, but the American worked his way out of the jam with a move that stunned the world.
A common theme emerged in the frenzied reaction that followed.