China's Ding Junhui hits the ball during the first round match against his compatriot Liang Wenbo at the 2009 World Snooker Championship in Sheffield, England, April 20, 2009. Ding leads by 5-4 after the first half. [Xinhua/Zeng Yi]

 Northern Ireland's Joe Swail looks on during the first round match against Marco Fu from Hong Kong of China at the 2009 World Snooker Championship in Sheffield, England, April 20, 2009. Fu advanced to the next round by winning the match 10-4. [Xinhua/Zeng Yi]