French Open 2010: Day 10

Switzerland's Roger Federer returns the ball to Sweden's Robin Soderling during his men's quarter-final match in the French Open tennis championship at the Roland Garros stadium, in Paris. (AFP Photo)

Russia's Mikhail Youzhny plays a return to Czech Tomas Berdych during their men's quarter-final match in the French Open tennis championship at the Roland Garros stadium, in Paris. (AFP Photo)

Sweden's Robin Soderling returns the ball to Switzerland's Roger Federer during their men's quarter-final match in the French Open tennis championship at the Roland Garros stadium, in Paris. (AFP Photo)

Czech Tomas Berdych serves to Russia's Mikhail Youzhny during their men's quarter-final match in the French Open tennis championship at the Roland Garros stadium, in Paris. (AFP Photo)

Switzerland's Roger Federer takes a break during his men's quarter-final match against Sweden's Robin Soderling in the French Open tennis championship at the Roland Garros stadium, in Paris. (AFP Photo)

Supporters of Switzerland's Roger Federer hold a banner during the men's quarter-final match between Sweden's Robin Soderling andFederer in the French Open tennis championship at the Roland Garros stadium, in Paris. (AFP Photo)

Russia's Elena Dementieva smiles after winning her women's quarter-final match against compatriot Nadia Petrova in the French Open tennis championship at the Roland Garros stadium, in Paris. (AFP Photo)

Italy's Francesca Schiavone shakes hands with Denmark's Caroline Wozniacki during their women's quarter-final match in the French Open tennis championship at the Roland Garros stadium, in Paris. (AFP Photo)