Former world number one Tiger Woods has pulled out of the Dubai Desert Classic ahead of his second round because of a back problem, the European Tour said on Friday. Appearing for the eighth time in Dubai, where he has won twice with a 92-under par record for the 28 rounds played there since 2001, the 41-year-old Woods looked out of sorts as he continued his comeback at the European Tour event. After his round, Woods said he was not in any pain on the course but decided to withdraw on Friday morning, trailing overnight leader Sergio Garcia by 12 shots. More...