South Africa's Louis Oosthuizen, right and Northern Ireland's Darren Clarke shake hands on the 18th green after a practice round ahead of the British Open Golf Championship at Royal St George's golf course in Sandwich, England, Wednesday, July 13, 2011.

South Africa's Louis Oosthuizen, right and Northern Ireland's Darren Clarke shake hands on the 18th green after a practice round ahead of the British Open Golf Championship at Royal St George's golf course in Sandwich, England, Wednesday, July 13, 2011.