The American started the day with a one stroke lead, saw six different players overtake him, and then rebounded at the death to move back ahead by the smallest of margins on one-under 209.

Tiger Woods and Steve Stricker were called back into Ryder Cup action for Saturday afternoon's fourballs, going up against Sergio Garcia and Luke Donald.

US Ryder Cup captain Davis Love named Steve Stricker, Jim Furyk, Dustin Johnson and Brandt Snedeker as his captain's wildcard picks for the American Ryder Cup team on Tuesday.

Steve Stricker fired a 10-under par 63 on Saturday to take a five-shot lead at the halfway stage of the US PGA Tour's season-opening Tournament of Champions.

KJ Choi birdied his opening five holes then held on in 30 mph (48 kph) gusts for a 6-under 66 that gave him a three-shot lead over Tiger Woods and Steve Stricker at the Chevron World Challenge on Thursday.

Defending champions the United States took command of The Presidents Cup on Saturday, dominating the third-day foursomes to open a five-point lead over the International team at Royal Melbourne.

Tiger Woods made the first move, reaching out to shake hands with his ex-caddie, that went a long way toward dousing the endless chatter over their acrimonious breakup.

Tiger Woods said on Tuesday that he is keen to reunite with Steve Stricker and play another dominant role for the United States in The Presidents Cup at Royal Melbourne this week.

Steve Stricker matched the low round in major golf history, firing a seven-under par 63 on Thursday for a two-shot lead while Tiger Woods stumbled to a opening 77 at the 93rd PGA Championship.

American Steve Stricker rolled in a 25-foot birdie putt from off the green on the final hole Sunday to post his third straight victory at the PGA Tour's John Deere Classic.