Complex sentence: Williams was able to retain her title with a win over Justine Henin, 6--4,3--6,6--2 in the final, while Nadal retired in his quarterfinals match against Andy Murray owing to a quadricep injury.
Split into simpler sentences: Williams was able to retain her title with a win over Justine Henin, 6--4,3--6,6--2 in the final. While Nadal retired in his quarterfinals match against Andy Murray owing to a quadricep injury.