Hunter Mahan hits from the 13th tee during the second round of the AT&T National at Congressional Country Club in Bethesda, Md., on Friday, June 29, 2012. (AP Photo/Patrick Semansky)
Tiger Woods watches his drive from the fourth tee during the second round of the AT&T National at Congressional Country Club in Bethesda, Md., on Friday, June 29, 2012. (AP Photo/Nick Wass)
Erik Compton tees-off on the first hole of a pro-am before the AT&T National golf tournament held at Congressional Country Club, Bethesda, Md., Monday, June 25, 2012. (Andrew Harnik/The Washington Times)
Tiger Woods starts his round in the afternoon on the first day of the AT&T National golf tournament held at Congressional Country Club, Bethesda, Md., Thursday, June 28, 2012. (Andrew Harnik/The Washington Times)
Tiger Woods hits a tee shot on the fourth hole at Congressional Country Club during first round play of the AT&T National golf tournament, Bethesda, Md., Thursday, June 28, 2012. (Ryan M.L. Young/The Washington Times)
Tiger Woods waits for his group to tee off on the first hole as he begins his round on the first day of the AT&T National golf tournament held at Congressional Country Club, Bethesda, Md., Thursday, June 28, 2012. (Andrew Harnik/The Washington Times)
Billy Hurley III waves to the crowd after hitting a chip shot on the sixth hole at Congressional Country Club during first round play of the AT&T National golf tournament, Bethesda, Md., Thursday, June 28, 2012. (Ryan M.L. Young/The Washington Times)
Beau Hossler hits an approach shot at Congressional Country Club during first round play of the AT&T National golf tournament, Bethesda, Md., Thursday, June 28, 2012. (Ryan M.L. Young/The Washington Times)
Billy Hurley III tees off on the sixth hole at Congressional Country Club during first round play of the AT&T National golf tournament, Bethesda, Md., Thursday, June 28, 2012. (Ryan M.L. Young/The Washington Times)
Vijay Singh watches his approach shot on the twelfth hole at Congressional Country Club during first round play of the AT&T National golf tournament, Bethesda, Md., Thursday, June 28, 2012. (Ryan M.L. Young/The Washington Times)
Vijay Singh hits an approach shot on the eleventh hole at Congressional Country Club during first round play of the AT&T National golf tournament, Bethesda, Md., Thursday, June 28, 2012. (Ryan M.L. Young/The Washington Times)
Davis Love III, second from right, uses his club to pick up his caddy's hat after he gave him a "hats off" congratulations for his putt on the seventh hole on the first day of the AT&T National golf tournament held at Congressional Country Club, Bethesda, Md., Thursday, June 28, 2012. (Andrew Harnik/The Washington Times)
Davis Love III, center, waves to the crowd after sinking his putt as Dustin Johnson, left, sets up to putt on the eighth hole on the first day of the AT&T National golf tournament held at Congressional Country Club, Bethesda, Md., Thursday, June 28, 2012. (Andrew Harnik/The Washington Times)
Hunter Mahan shows his frustration after missing a putt on the eighth hole on the first day of the AT&T National golf tournament held at Congressional Country Club, Bethesda, Md., Thursday, June 28, 2012. (Andrew Harnik/The Washington Times)
Hunter Mahan lines up a putt on the eighth hole on the first day of the AT&T National golf tournament held at Congressional Country Club, Bethesda, Md., Thursday, June 28, 2012. (Andrew Harnik/The Washington Times)