Rafael Nadal defeated which 19-time Grand Slam titlist in the 2008 French Open for his fourth straight clay major title?
2008 French Open – Men's Singles Rafael Nadal was the 3-time defending champion and retained his title, defeating Roger Federer in the final 6–1, 6–3, 6–0. This was Federer's worst loss in a Grand Slam event in his entire
1977 River Plate Championships (tennis) The first 1977 ATP Buenos Aires was an Association of Tennis Professionals men's tennis tournament that was played on outdoor clay courts in Buenos Aires, Argentina and held from 14 April through 17 April 1977. First-seeded Guillermo Vilas won the singles title.