Graeme McDowell of Northern Ireland tees off on the second hole during the second round of the Chevron World Challenge golf tournament at Sherwood Country Club in Thousand Oaks, California December 4, 2009. McDowell replaced Tiger Woods in the tournament after Woods withdrew.
Camilo Villegas of Colombia tees off on the second hole during the second round of the Chevron World Challenge golf tournament at Sherwood Country Club in Thousand Oaks, California, December 4, 2009.
Yang Yong-eun of South Korea hits his approach shot onto the 18th green during the second round of the Chevron World Challenge golf tournament at Sherwood Country Club in Thousand Oaks, California, December 4, 2009.
Sean O'Hair of the U.S. hits an approach shot onto the 18th green during the second round of the Chevron World Challenge golf tournament at Sherwood Country Club in Thousand Oaks, California, December 4, 2009.
Jim Furyk of the U.S. hits his approach shot from the 18th fairway during the second round of the Chevron World Challenge golf tournament at Sherwood Country Club in Thousand Oaks, California, December 4, 2009.
Ian Poulter of England hits a shot out of the rough along the 18th fairway during the second round of the Chevron World Challenge golf tournament at Sherwood Country Club in Thousand Oaks, California, December 4, 2009.
photo: Reuters
Graeme McDowell of Northern Ireland tees off on the second hole during the second round of the Chevron World Challenge golf tournament at Sherwood Country Club in Thousand Oaks, California December 4, 2009. McDowell replaced Tiger Woods in the tournament after Woods withdrew. 
