French Open: Day 9

It was business as usual on Day 9 at the Roland Garros as most seeded players progressed at the French Open.

World No. 1 Rafael Nadal was not his usual dominating self but nevertheless outclassed Croatia's Ivan Ljubicic in the fouth round to enter the last eight of the French Open tennis championship at the Roland Garros stadium. (AFP PHOTO)

Sweden's Robin Soderling didn't have much trouble in getting past local boy Gilles Simon in the fourth round match at the French Open tennis tournament at the Roland Garros stadium in Paris. (AP Photo)

The Soderling-Simon match had a royal spectator as Pippa Middleton, sister of Kate, Duchess of Cambridge (bottom left) was in attendance to watch the fourth round match of the French Open tennis tournament at the Roland Garros stadium in Paris. (AP Photo)

France's Gilles Simon had the crowd support but could not down Sweden's Robin Soderling in the fourth round of the French Open tennis tournament at the Roland Garros stadium in Paris. (AP Photo)

It was an even contest between France's Gael Monfils and Spain's David Ferrer but in the end the Frenchman prevailed at the French Open tennis tournament at the Roland Garros stadium in Paris. (AP Photo)

Belarus' Victoria Azarenka found a unique way to express her joy after defeating Russia's Ekaterina Makarova during their fourth round match of the French Open tennis tournament at the Roland Garros stadium in Paris. (AP Photo)

Rohan Bopanna kept the Indian hopes alive in the men's doubles after progressing to the quarterfinals along with his Pakistani partner Aisam-ul-Haq Qureshi. (AFP Photo)

Colombia' Alejandro Falla was bidding to become the first Colombian man to reach a Grand Slam quarter-final but the dream was crumbled by Argentina's Juan Ignacio Chela at the French Open tennis tournament at the Roland Garros stadium in Paris. (AP Photo)

Argentina's Juan Ignacio Chela overcame Colombia's Alejandro Falla in a pulsating 5-setter in the fourth round match at the French Open tennis tournament in Roland Garros stadium. (AP Photo)

Li Na became the first Chinese player to advance to the quarter-finals of the French Open after defeating 21-year old Czech Petra Kvitova in the fourth round. (AFP Photo)

Petra Kvitova was left heartbroken after her fourth round loss to China's Li Na in the French Open tennis championship at the Roland Garros stadium. (AFP Photo)