Photo gallery of Saturday at Southern Hills 2007 PGA Championship

1 of 19 Robert Beck/SI
Saturday at Southern Hills The third round of the 2007 PGA Championship was hot and sunny once again at Southern Hills. Tiger Woods was steady and added to his lead as the competition wilted in the 100-degree heat. Players and fans have to handle extreme elevation changes, as well as extreme temperatures, at Southern Hills.
2 of 19 Stuart Franklin/Getty Images
England's Lee Westwood had to play out of a dried creek bed Saturday on the 4th hole. Remarkably, he went on to make par on the hole, but he scored only one birdie against six bogeys on the day to shoot 75.
3 of 19 Stuart Franklin/Getty Images
Shingo Katayama of Japan looked at home on the range in Oklahoma. He shot a two-over-par 72 Saturday.
4 of 19 Jamie Squires/Getty Images
Stuart Appleby shot 72 and is tied for 17th at three over par.
5 of 19 Stuart Franklin/Getty Images
Boo Weekley made a run at shooting a 63 Saturday, scoring seven birdies on the day. But he three putted the 18th hole to finish with a 65. Weekley is tied for sixth at even par for the tournament.
6 of 19 Jamie Squires/Getty Images
Adam Scott's best performance in a major was one year ago at the 2006 PGA Championship at Medinah where he tied for third. The Australian shot an even par 70 on Saturday and is tied for sixth.
7 of 19 Stuart Franklin/Getty Images
Sergio Garcia was disqualified for signing an incorrect scorecard on Saturday. He signed for a 4 on the par-4 17th hole, when he in fact made a 5. His playing partner, Boo Weekley, wrote the score down incorrectly.
8 of 19 David Cannon/Getty Images
Back-to-back birdies on 13 and 14 helped John Senden move up the leaderboard. His 69 Saturday left him in fourth place, five shots behind Woods.
9 of 19 Robert Beck/SI
Many people thought that Australia's Geoff Ogilvy, the 2006 U.S. Open winner, was the man who could chase down Tiger Woods Saturday. However, the Australian shot a 74 and is eight shots behind Woods.
10 of 19 Robert Beck/SI
The grounds crew made sure the course, and the fans, stayed as cool as possible.
11 of 19 Robert Beck/SI
After hitting his second shot left into the trees on No. 12, Scott Verplank's third shot hit a tree and dropped straight down. His fourth shot (shown here) finally reached the green. Verplank scored a double-bogey on the hole and finished the day at even par for the tournament, seven shots behind Woods.
12 of 19 David Cannon/Getty Images
Woody Austin's 69 lowered his overall score to three under par for the tournament and left him alone in third place going into Sunday.
13 of 19 David Cannon/Getty Images
Stephen Ames is four under. His best finish in a major was a tie for fifth at the 1997 British Open, and his best finish at a PGA Championship was a tie for ninth in 2004. A birdie on the 18th Saturday gave him a 69 and earned him a spot in the final pairing Sunday with Woods.
14 of 19 Fred Vuich/SI
Woods shot 69 and is seven under par for the tournament. He leads the 89th PGA Championship by three strokes going into Sunday.
15 of 19 John Biever/SI
Woods hitting his second shot on the 18th. He hit nine of 14 fairways and 14 of 18 greens in regulation.
16 of 19 Robert Beck/SI
Woods hit the fairway with this drive on No. 10 and went on to par the hole.
17 of 19 Robert Beck/SI
It was 101 degrees in Tulsa Saturday afternoon, but one fan still decided to pay homage to Woods.
18 of 19 Robert Beck/SI
All eyes were on tournament leader Tiger Woods as he teed off on the par-5 5th hole Saturday.
19 of 19 Jamie Squires/Getty Images
Phil Mickelson and his caddie, Jim McKay, talked strategy Saturday. The 2005 PGA Championship winner shot 75 and is tied for 58th going into the final round.