Caroline Wozniacki has never won a Grand Slam title, but played like number one to make quick work of the young Japanese Ayumi Morita. The Dane defeated her in straight sets 6-2, 6-3 to proceed further in the tournament.

French open champion Francesca Schiavone also rallied to the second round with a 7-5 7-6 (2) win over China's Peng Shuai. The Italian's will defend her Roland Garros title in three weeks, and the win must have helped her with a confidence boost after her loss at Stuttgart.

Schiavone took just two hours on court at the Caja Magica complex, faced only two break points from her Chinese opponent, who is ranked 30th in the world before wining the match in two sets. The Italian said, "I've improved a lot in my game, I'm recovering better and I've improved my fitness. It all adds up. "

Former World number one Maria Sharapova also moved ahead as she got to a 2-6 6-3 6-2 victory over Dutch challenger Alexandra Rus.

The graceful Russian said, "She started well, playing aggressive. I was the tentative one and she took advantage. But I'm happy I was able to turn it around. It was my first match on clay in some time. I was in a similar situation here last year and I lost. "I'm happy I came back for the win."

The Russian ended the match with 37 unforced errors and just 14 winners on the clay venue at Madrid. Also on Sunday, Slovak Daniela Hantuchova scored a win over Japan's 40-year-old Kimiko Date-Krumm 6-3 6-3, while Spain's Arantxa Parra Santonja defeated Italian Flavia Pennetta 6-3 7-5.