A soccer referee was briefly knocked unconscious at Crocker Amazon Park on Sunday after a player enraged by a call pummeled his face with a “martial arts kick,” police said.

The player fled after the brutal karate kick left the referee unconscious for about three seconds on the soccer field around 9:45 a.m. The referee later told cops the player became outraged after he called a foul on him.

“The suspect fled when he saw the victim go down and not get up right away,” police said.