| The world number 11, who is South Africa's top ranked golfer, 
				joins compatriots Louis Oosthuizen and Charl Schwartzel in 
				pulling out of the August Games, which will see the sport return 
				for the first time in 112 years.
 "After serious consideration, it is with regret that I have 
				decided to withdraw myself from the Olympic competition due to 
				the risk posed by the Zika virus," the 28-year-old, who is 
				engaged to Nieke Coetzee, said in a statement.
 
 "Although it was a huge goal of mine to represent my country in 
				the Olympics, we are getting married in November and hoping to 
				start a family in the near future, so I must put the health of 
				my family first."
 
 South Africa team captain Gary Player said he was disappointed 
				but respected Grace's decision.
 
 "Like Louis and Charl, his presence will be missed by the South 
				African team," he said in a statement. "Now we simply have to 
				take the 'next man up' mentality. No doubt in my mind we can 
				still deliver a medal."
 
 Grace's withdrawal means Jaco Van Zyl (world number 59) and 
				Brandon Stone (101) are in line to represent South Africa in 
				Rio.
 
 Northern Ireland's four-times major winner Rory McIlroy 
				announced on Wednesday he would not go to Rio because of health 
				fears over Zika.
 
 Former U.S. Open champion Graeme McDowell then issued a 
				statement ruling himself out as replacement because his wife is 
				due to give birth a couple of weeks after the Games.
 
 Fiji's Vijay Singh and Australia's Marc Leishman have also 
				pulled out of the Olympics due to concerns over Zika.
 
 U.S. health officials have concluded that Zika infections in 
				pregnant women can cause microcephaly, a birth defect marked by 
				small head size that can lead to severe developmental problems 
				in babies.
 
 The World Health Organisation has said there is strong 
				scientific consensus that Zika can also cause Guillain-Barre, a 
				rare neurological syndrome that causes temporary paralysis in 
				adults.
 
 (Reporting by Alan Baldwin; Editing by John O'Brien)
 
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