SYDNEY FC goalkeeper Vedran Janjetovic has had a brain snap during his side’s clash with Brisbane Roar.

The Sydney keeper reacted after Roar captain Matt McKay caught him late while he was clearing the ball from inside his own goal box in the first half.

Janjetovic ran up behind McKay and pulled him to the ground.

The referee didn’t seem to see the inicident as both players went unpunished.

“Janjetovic is having a standup fight on the edge of the box with McKay,” said FOx Sports commetator Mike Cockerill.

“That’s a brain snap.”

“I’m not sure if the referee saw that; I only caught it in out of the corner of my eye.”

WATCH THE INCIDENT IN THE VIDEO ABOVE.