VIDEO: UFC fighter tricks opponent into game of rock-paper-scissors at weigh-in

UFC light heavyweight Sean O'Connell will take on Anthony Perosh at Fight Night Adelaide on Saturday.

At Friday night's weigh-in, O'Connell decided to have a little fun at Perosh's expense, turning the stare down into an impromptu game of rock-paper-scissors.

Perosh never knew what hit him and O'Connell picked up the easy victory.