(Reuters) - Malaysian golfer Danny Chia is unfazed by the high-profile pullouts from next month's Rio Games over the Zika virus and believes he will still have to battle a world class field to return with an Olympic medal. Golf's return to Olympics for the first time since 1904 has been hit by withdrawals by big names, including the world's top four players Jason Day, Dustin Johnson, Jordan Spieth and Rory McIlroy. "It's a shame that golf will return to the Olympics after 112 years without the world's top four stars and several other top players," Chia told the Malaysian media. More...