French Open

French Open second round on Sunday with a gruelling 7-6 (7/3), 6-3 win over Italy's Sara Errani as Roland Garros temperatures hit a sweltering 30 degrees. The 21-year-old, eighth-seeded Serbian will play either Thai veteran Tamarine Tanasugarn or Camille Pin of France for a place in the third round. Ivanovic eased through the tiebreak and then dominated the second set, stretching out a 5-1 lead on the back of two breaks.

The cheerful Ivanovic, who skipped the Madrid Open because of a knee injury, had the problem area taped when she walked onto a sun-drenched Philippe Chatrier Court, but it didn't hinder her in the early exchanges as she edged to a 3-1 advantage. The 44th-ranked Italian then stormed back to lead 5-4, but once she had squandered an opportunity to serve for the first set in the 10th game, her fight steadily melted away. She suffered a slight blip when Errani clawed one break back in the eighth game, but the champion eventually clinched victory with a swooping forehand in the ninth game after over two hours on court.

"I knew I had to work hard for every point, but I kept my composure even when I was making mistakes," said Ivanovic, who racked up 50 winners in the match. "My knee wasn't a problem. I feel fine. I had some good practice sessions last week after taking the Madrid tournament off. It only takes a few days to get back into shape." China's Li Na, the 25th seed, earlier had the honour of becoming the first player to reach the second round thanks to a 6-4, 6-2 win over Poland's Marta Domachowska.