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Atlanta (AFP) - Louis Oosthuizen limped out of the Tour Championship on Thursday after suffering a hamstring injury during the first round, placing a question mark against his fitness for next month's President's Cup.
Oosthuizen withdrew after 13 holes at East Lake Golf Club after sustaining a muscle strain earlier in the round. The 2010 British Open champion was five-over-par when he pulled out.
The 32-year-old later revealed the injury had impeded his ability to swing properly.