** Update: Today's San Diego Union-Tribune filled in details on the scuffle involving Adam Scott's caddie in yesterday's second round. The unruly fans were a father, 62, and son, 37, both locals. Scott's caddie, Tony Navarro, actually head-butted the father. Witnesses said the son then took a swing at Navarro but missed. Both fans were arrested on suspicion of being drunk in public. **

Adam Scott’s caddie confronted a heckling fan during Friday’s second round at Torrey Pines, triggering a wild scuffle that police had to break up and drawing even more attention to the much-hyped Scott-Tiger Woods-Phil Mickelson grouping.

The incident occurred near the ninth tee box (Scott's 18th hole) when the caddie, Tony Navarro, tried to silence the fan as Stuart Appleby was hitting his tee shot on the adjacent 18th hole.

“Shut up, yellow!” the fan snapped back at Navarro, referring to the caddie's yellow bib.

Navarro, with Scott’s bag still slung over his shoulder, then slid under the ropes and barreled through a cluster of startled spectators in pursuit of the fan.

“They got face to face and were yapping at one other,” said Lance Ray, who witnessed the confrontation. “It was heated.”

Ray said the fan, likely in his 60s, appeared to be inebriated and that he had been heckling Scott for several holes.

Moments later several police officers collapsed on the fracas, which by that point included another fan, an acquaintance of the man Navarro had approached. The second fan was younger and his arms were covered with tattoos.

“Let him go!” the tattooed man yelled at a police officer, who was restraining the other fan with a headlock. “He's 60 years old!”

With great effort, the police handcuffed both men and led them up the path behind the ninth tee box.

Navarro, one of the more high-profile caddies on the PGA Tour, has worked for Scott since 2004. Before that, he caddied for Greg Norman.

(Photo: Robert Beck/SI)