费德勒九站大师系列赛冠军还差哪几站？
费德勒四大满贯还差一个法网，有谁知道九站大师系列赛还差哪几站？
参考答案:还有罗马，蒙特卡洛，巴黎和马德里四站
以下是他的冠军表
SINGLES CAREER TITLES (41):
2001--Milan;
2002--Hamburg TMS, Sydney, Vienna;
2003--Dubai, Halle, Marseille, Munich, Tennis Masters Cup, Vienna, Wimbledon;
2004--Australian Open, Bangkok, Canada AMS, Dubai, Gstaad, Halle, Hamburg AMS, Indian Wells AMS, Tennis Masters Cup, US Open, Wimbledon;
2005--ATP Masters Series Cincinnati, ATP Masters Series Hamburg, ATP Masters Series Indian Wells, ATP Masters Series Miami, Bangkok, Doha, Dubai, Halle, Rotterdam, US Open, Wimbledon;
2006--ATP Masters Series Canada, ATP Masters Series Indian Wells, ATP Masters Series Miami, Australian Open, Doha, Halle, US Open, Wimbledon