UPDATE 2-Golf-Reed's caddie stood down after clash with heckler

Patrick Reed's caddie will not return to the Presidents Cup for the final day after being involved in an altercation with a spectator on Saturday, the PGA Tour said. The incident occurred after Reed and his playing partner Webb Simpson were thrashed 5&3 by the Internationals in the morning fourballs.

Reed has been heckled by fans throughout at Royal Melbourne following his controversial penalty in the Bahamas last week where he was penalised two strokes for improving his lie in a waste bunker. "Following an incident that took place on Saturday at the Presidents Cup involving Kessler Karain and a spectator, Karain will not return to caddie for Sunday's final singles matches," the Tour said in a statement.

Reed said he respected the Tour's decision. "We are all focused on winning the Presidents Cup tomorrow," he added.

Karain, who is also Reed's brother-in-law, had confronted the fan as they were driving a golf cart following the morning match. A video posted on Twitter showed Karain gesturing angrily near a temporary seating terrace at the course before turning to board the cart and drive off with Reed.

Golf podcast Fore Play posted a statement from Karain on social media saying a fan had shouted an expletive at Reed from "about three feet away". "I got off the cart and shoved him, said a couple things, probably a few expletives," the statement said.

"Security came and I got back in cart and left. ... the most harm done was a little spilled beer, which I'm happy to reimburse him for." Before Reed arrived in Melbourne, players on the Ernie Els-captained International team urged local crowds to give him a hard time, with Australian golfer Cameron Smith accusing the American of "cheating the rules".

In a pre-tournament media conference, Reed denied cheating and said he had inadvertently breached the rule. Some spectators have brought miniature shovels to the course and waved them at Reed. Others have worn shirts branding him "The Excavator".

Reed responded to the heckling on Friday by making a shovelling gesture with his putter after holing a birdie. Despite Reed and Simpson losing in Thursday's fourballs and the foursomes on day two, the pairing were given another chance by captain Tiger Woods on Saturday morning but were well beaten by East Asian aces Hideki Matsuyama and C.T. Pan.

The American duo were dropped for the afternoon foursomes. Reed, a captain's pick, has now failed to score a point in five successive matches when partnered up at team events, having been beaten twice with Woods at last year's Ryder Cup in France. (Editing by Peter Rutherford)