South Africa's Louis Oosthuizen lines up a putt on the seventh green during the WGC-Accenture Match Play Championship, Thursday, Feb. 21, 2013, in Marana, Ariz.

South Africa's Louis Oosthuizen lines up a putt on the seventh green during the WGC-Accenture Match Play Championship, Thursday, Feb. 21, 2013, in Marana, Ariz.