Berlin, April 28 - Top-ranked Victoria Azarenka had to exert every ounce of her energy to beat German wild card Mona Barthel 6-4, 6-7 (3-7), 7-5 in a match that lasted nearly three hours at the Porsche Grand Prix in Stuttgart, Germany.
With Azarenka, Maria Sharapova, Petra Kvitova and Agnieszka Radwanska all in Saturday's semi-finals, this is the first time since the Wimbledon Open in 2009 that the world's top four players have reached the last four at a WTA tournament, reports Xinhua.
Second-ranked Sharapova rallied to outlast No. 5 Sam Stosur of Australia 6-7 (5-7), 7-6 (7-5), 7-5 in a match that went one minute over three hours.
Fourth-seeded Radwanska rallied past No. 8 Li Na of China 3-6, 6-2, 6-3, while third-seed Kvitova advanced with a 6-4, 6-4 win over Germany's Angelique Kerber. (IANS)

Belo Horizonte (Brazil), June 18 - An emotional Tahiti coach Eddy Etaeta, after a 1-6 thrashing by Nigeria, said his team hoped to "win the hearts" of Brazilian fans during the Confederations Cup.
Belo Horizonte (Brazil), June 18 - Nnamdi Oduamadi scored a hat-trick as Nigeria crushed a spirited Tahiti 6-1 in their Confederations Cup football Group B clash here at the Mineirao stadium.
London, June 18 - Scoreboard of the Champions Trophy Group A match between Sri Lanka and Australia at the Kennington Oval here Monday.
London, June 18 - Sri Lanka edged Australia by 20 runs and in the process booked their seat in the semifinals of the Champions Trophy at the Kennington Oval here Monday.
Misano (Italy), June 17 : Both Mahindra Racing riders Andrea Locatelli and Michael Rinaldi performed well in Rounds 5 and 6 of the CIV Moto3 which concluded at the Misano World Circuit here.
Noumea (New Caledonia), June 15 : Gaurav Gill (co-driver Glenn Macneall) took a commanding 12-minute lead for the MRF Tyres Rally team after Day 1 of the Rally of New Caledonia, the second round of the