Russia's Nikolay Davydenko and Spain's David Ferrer moved into the third round on Tuesday in Hamburg with easy two-sets wins. On Wednesday, Spain's Rafael Nadal and Swiss world number one Roger Federer enter the tournament.
Former world number one player Lleyton Hewitt could be forced to withdraw from both the French Open and Wimbledon tournaments. The Australian tennis player suffered a hip injury and is undergoing tests in Sydney.
Australian Open finalist Jo-Wilfried Tsonga fought back after a disastrous first set to qualify against fellow Frenchman Nicolas Mahut, while Britain's Andy Murray eased into the second round with a 6-4, 6-1 win over Russia's Dmitry Tursunov.
Hot favourite Novak Djokovic struggled to defeat Switzerland's Stanislas Wawrinka in three sets (4-6, 6-3, 6-3 ) in the final of the Rome Masters. The Serb claims his 10th career title, and his third of the year.
Elena Dementieva beat world number two Ana Ivanovic in straight sets on Saturday to reach the final of the German Open. She meets fellow Russian Dinara Safina (pictured left), who earlier dispatched the young Belarussian Victoria Azarenka.
World number one Roger Federer was dumped out of the Rome Masters after losing his quarter-final clash with the Czech Republic's unseeded Radek Stepanek in straight sets, in another bad result for the Swiss ahead of Roland-Garros.
Russia's Dinara Safina stormed into the semi-final in Berlin after breaking Serena William's 17-match unbeaten run. Safina's surprise win comes just 24 hours after she defeated world number 1 Justine Henin.
WTA number one Justine Henin crashed out of the German Open after losing to Russia's 13th seed Dinara Safina in the third round. The Belgian champion's surprise defeat comes just 20 days ahead of Rolland Garros.