PARIS, May 25 (AFP) - Two-time US Open champion Pat Rafter of Australia scored a four-set win over Roger Federer of Switzerland on Tuesday to advance to the second round of the men's singles at the French Open. Rafter, the third seed, defeated 17-year-old Federer 5-7, 6-3, 6-0, 6-2 in 2hr 13min.  