The SFPD is seeking an adult — and apparently quite aggro — soccer player who brutally beat the referee who ejected him from a game.

The Chron reports that the fateful adult-league game was played at 10 a.m. Sunday at the soccer field behind the Minnie and Lovie Ward Recreation Center. The 33-year-old ref issued a yellow card to a player, typically a caution given to punish milder forms of misconduct (here's a primer on soccer penalties and their meanings).

That player appeared to disagree with the ref's decision, and said so. The ensuing dispute resulted in another yellow card — and, as soccer fans know, two yellow cards equals a red card, which equals ejection from the game.

The amateur athlete, apparently incensed by the ref's call, "ran up behind the ref and coldcocked him before fleeing in a white Chevrolet Silverado," the Chron reports.

The blow knocked the victim out cold, and caused a broken jaw, loosened teeth, and a traumatic brain injury. His current condition was not available at publication time.

According to the Chron, the referee knew his assailant, so the clock is ticking on his arrest. However, the SFPD is still happy to get tips on his current location via their anonymous tip line at (415) 575-4444.

The poor sport, the Chron reports, is "described as 6 feet 2 inches tall, 20 to 25 years old with black or brown hair. He was wearing a green and white soccer jersey at the time of the assault."

“If you’re a fanatic in the sport, that’s one thing," SFPD spokesperson Officer Carlos Manfredi told CBS5.

"But to assault a referee; to take your aggression because of a call he made, that’s a problem. It’s just a matter of time before we identify who he is, and hold him accountable."