Number three seed Ana Ivanovic made a winning start to her Linz Open campaign with a 6-2 6-4 victory over Yanina Wickmayer.
Serena Williams eased into the third round of the WTA Bastad open with a 6-2 6-3 win over Anna Tatishvili.
Laura Robson opened her Wimbledon campaign with a convincing 6-3 6-4 win over Maria Kirilenko.
Round-up: Serena Williams began the defence of her Wimbledon title with a comfortable 6-1 6-3 victory over Luxembourg's Mandy Minella.
Laura Robson set up a second round clash against Caroline Wozniacki at Eastbourne after beating Yulia Beygelzimer.
British number two Heather Watson made a winning start to WTA Eastbourne as she beat Varvara Lepchenko of the USA 6-3 6-4.
Home favourite Marian Bartoli saved two match points in a rain-interrupted three-hour triumph against Olga Govortsova at the French Open.
Sam Stosur reached the second round of the French Open with a 6-0 6-2 win over Kimiko Date-Krumm at Roland Garros.
Elena Baltacha became the second Brit to crash out of the French Open when she was beaten 6-3 6-0 by Marina Erakovic.
Second seed Roberta Vinci survived a scare to come through her second round match at WTA Katowice.
John Isner prevailed in an all-American battle with Ryan Harrison to kick off his ATP Houston campaign on a winning note.
Round-up: Top seed Caroline Wozniacki suffered a shock first-round defeat to qualifier Wang Qiang at the Malaysian Open.
Jan 14 (Infostrada Sports) - Results from the Australian Open Women's Singles Round 1 matches on Monday 13-Ana Ivanovic (Serbia) beat
Jan 14 (Infostrada Sports) - Results from the Australian Open Women's Singles Round 1 matches on Monday Chan Yung-Jan (Taiwan) beat
Jan 14 (Infostrada Sports) - Results from the Australian Open Women's Singles Round 1 matches on Monday Lucie Hradecka (Czech Republic)
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