FRENCH OPEN ROUND UP

The only concern hanging over the world number one was an injury timeout in the third set when then the trainer was called on court to massage a problem with his shoulder.

The Serb, chasing the only grand slam missing from his collection, capitalised on a string of Dimitrov errors to gain revenge over the player who had beaten him in Madrid in May.

The Serb will now face Philipp Kohlschreiber after he beatVictor Hanescu 6-0 7-6(0) 6-1.

Rafael Nadal beat Italian Fabio Fognini 7-6(5) 6-4 6-4 to book his place in the fourth round.

The Spaniard, who struggled in his first two rounds, was bothered by Fognini's clever shots early on but once he got the measure of the 27th seed the contest was effectively over.

Nadal, who has 11 grand-slam titles to his name, sealed the win after two hours 45 minutes when Fognini sent a backhand long.

"I think he is a fantastic player," Nadal said of his opponent in a courtside interview. "Winning the first set is always important especially after losing it in the first matches."

Nadal, who is looking to become the first man to win the same grand-slam title eight times will play Kei Nishikori who became the first Japanese man to reach the last 16 of the French Open in 75 years when he beat French 24th seed Benoit Paire 6-3 6-7(3) 6-4 6-1 in the third round on Saturday.

In the Women's game Sharapova slipped 4-1 down in the second set against tenacious Chinese Zheng Jie before going through 6-1 7-5 to set up a French Open last-16 clash with American Sloane Stephens.

Umpires clambering off their chairs to inspect ball marks in the clay is a common sight at Roland Garros but champion Maria Sharapova believes it is time technology took over after a rough call in her win on Saturday.

Serving at 3-1 down in the second set the second seed's second delivery was called out. The umpire checked the mark at her insistence and confirmed the call although television replays suggested the Russian's suspicions were justified.

"First of all it's not even about the fact of the call, whether it was in or out," Sharapova told reporters.

"I think for me it was the fact the umpire did not recognise the mark he pointed out was about a foot away from the actual mark. That's a huge question mark to begin with."

The other three grand slams, two played on hardcourts and one on grass at Wimbledon, allow players to have three unsuccessful Hawk-Eye challenges each set and the system is popular with players and fans

The American based went on: "All the other grand slams have Hawk-Eye and I know these types of situations happen although much more rarely on the clay. Why not? Why don't we have a system like this?

"I mean, is it a money concern? I don't think so. This is just absolute proof that it's a big point and it can happen in any situation," said Sharapova.

"Down 4-1 is not a score I want but I am happy with the way I fought back and I found a way to win that second set without having to go into a third," the 26-year-old said.

Men's results

1-Novak Djokovic (Serbia) beat 26-Grigor Dimitrov (Bulgaria) 6-2 6-2 6-3

3-Rafa Nadal (Spain) beat 27-Fabio Fognini (Italy) 7-6(5) 6-4 6-4

7-Richard Gasquet (France) beat Nikolay Davydenko (Russia) 6-4 6-4 6-3

29-Mikhail Youzhny (Russia) beat 8-Janko Tipsarevic (Serbia) 6-4 6-4 6-3

9-Stanislas Wawrinka (Switzerland) beat 21-Jerzy Janowicz (Poland) 6-3 6-7(2) 6-3 6-3

12-Tommy Haas (Germany) beat 19-John Isner (U.S.) 7-5 7-6(4) 4-6 6-7(10) 10-8

13-Kei Nishikori (Japan) beat 24-Benoit Paire (France) 6-3 6-7(3) 6-4 6-1

16-Philipp Kohlschreiber (Germany) beat Victor Hanescu (Romania) 6-0 7-6(0) 6-1

Women’s results

2-Maria Sharapova (Russia) beat Zheng Jie (China) 6-1 7-5

3-Victoria Azarenka (Belarus) beat 31-Alize Cornet (France) 4-6 6-3 6-1

Jamie Hampton (U.S.) beat 7-Petra Kvitova (Czech Republic) 6-1 7-6(7)

18-Jelena Jankovic (Serbia) beat 9-Samantha Stosur (Australia) 3-6 6-3 6-4

12-Maria Kirilenko (Russia) beat Stefanie Voegele (Switzerland) 7-6(3) 7-5

Francesca Schiavone (Italy) beat 13-Marion Bartoli (France) 6-2 6-1

17-Sloane Stephens (U.S.) beat Marina Erakovic (New Zealand) 6-4 6-7(5) 6-3

Bethanie Mattek-Sands (U.S.) beat Paula Ormaechea (Argentina) 4-6 6-1 6-3