Rory McIlroy, of Northern Ireland, speaks during a news conference to discuss the Tour Championship golf tournament in Atlanta on Wednesday, Sept. 19, 2012. The tournament begins Thursday. (AP Photo/John Bazemore)

Tiger Woods speaks during a news conference to discuss the Tour Championship golf tournament in Atlanta on Wednesday, Sept. 19, 2012. The tournament begins Thursday. (AP Photo/John Bazemore)

Rory McIlroy, of Northern Ireland, speaks during a news conference to discuss the Tour Championship golf tournament in Atlanta on Wednesday, Sept. 19, 2012. The tournament begins Thursday. (AP Photo/John Bazemore)

Tiger Woods speaks during a news conference to discuss the Tour Championship golf tournament in Atlanta on Wednesday, Sept. 19, 2012. The tournament begins Thursday. (AP Photo/John Bazemore)

Golfer Tiger Woods speaks during a news conference to discuss the Tour Championship golf tournament in Atlanta on Wednesday, Sept. 19, 2012. (AP Photo/John Bazemore)

Rory McIlroy, of Northern Ireland, works on his swing during practice for the Tour Championship golf tournament in Atlanta on Wednesday, Sept. 19, 2012. (AP Photo/John Bazemore)

Rory McIlroy, of Northern Ireland, works on his swing during practice for the Tour Championship golf tournament in Atlanta on Wednesday, Sept. 19, 2012. (AP Photo/John Bazemore)

Golfer Tiger Woods speaks during a news conference to discuss the Tour Championship golf tournament in Atlanta on Wednesday, Sept. 19, 2012. (AP Photo/John Bazemore)

Golfer Rory McIlroy speaks during a news conference to discuss the Tour Championship golf tournament in Atlanta on Wednesday, Sept. 19, 2012. (AP Photo/John Bazemore)

Golfer Tiger Woods speaks during a news conference to discuss the Tour Championship golf tournament in Atlanta on Wednesday, Sept. 19, 2012. (AP Photo/John Bazemore)

Golfer Tiger Woods speaks during a news conference to discuss the Tour Championship golf tournament in Atlanta on Wednesday, Sept. 19, 2012. (AP Photo/John Bazemore)

Golfer Tiger Woods speaks during a news conference to discuss the Tour Championship golf tournament in Atlanta on Wednesday, Sept. 19, 2012. (AP Photo/John Bazemore)

Golfer Tiger Woods speaks during a news conference to discuss the Tour Championship golf tournament in Atlanta on Wednesday, Sept. 19, 2012. (AP Photo/John Bazemore)

Nick Watney works on his swing during practice for the Tour Championship golf tournament in Atlanta on Wednesday, Sept. 19, 2012. The tournament starts Thursday. (AP Photo/John Bazemore)

John Senden watches his shot from the fairway on the ninth hole during a practice round for the Tour Championship golf tournament in Atlanta on Wednesday, Sept. 19, 2012. (AP Photo/John Bazemore)