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
2009 French Open – Men's Singles Rafael Nadal was the four-time defending champion, but lost in the fourth round to Robin Söderling. This was Nadal's first defeat (of two) at the French Open, having won the title in all four of his previous appearances at Roland Garros since debuting in 2005. With Nadal's loss, there would be a first time French Open champion for 2009.