MUNICH: Top-seeded Marin Cilic had few problems while booking his second round berth at the BMW Open here on Wednesday. Cilic scored a comfortable 6-4, 6-2 win over Germany's Michael Berrer.

After rain postponed their match from Tuesday evening, Croatia's Cilic needed just over an hour to make the second round where he will meet another German — Simon Greul — on Thursday.

Fourth-seeded Philipp Kohlschreiber, who won the tournament in 2007, also had a smooth passage into the next round when he beat compatriot Daniel Brands 6-4, 6-4 and will face Spain's Santiago Ventura in the second round.

Ventura recovered from losing the first set of his first round tie against Oleksandr Dolgopolov Jnr of the Ukraine to record a 6-7(5), 6-3, 6-3 win in a match which began on Tuesday and ended on Wednesday.

Eighth-seeded Benjamin Becker was a second round casualty as he crashed out 6-4, 6-0 against Jan Hajek of the Czech Republic.

Serena in last eight

World No. 1 Serena Williams overcame a mid-match slump to defeat unseeded Andrea Petkovic in three sets to reach the quarterfinals of the Rome Open.

The Australian Open champion won 6-2, 3-6, 6-0 against the 49th-ranked German but was rarely at her best.

Serena is playing in her first tournament since winning in Melbourne in January but unlike her second round match on Tuesday when she started slowly, she was out of the blocks quickly enough.

She broke Petkovic in the fifth game with a backhand winner down the line and then again in the seventh with a cross-court forehand winner.

Petkovic was not overawed by her illustrious opponent and matched her shot for shot while Serena produced as many unforced errors as the 22-year-old.

Things got interesting in the second set as Petkovic broke Serena in the fourth game and had three break points for a 5-1 lead in the favourite's next service game.

The results: At Munich (BMW Open): Second round: Jan Hajek bt Benjamin Becker 6-4, 6-0; Philipp Petzschner bt Daniel Koellerer 6-1, 6-4; First round: Marin Cilic bt Michael Berrer 6-4, 6-2; Kevin Anderson bt Mischa Zverev 6-5, retd.; Philipp Kohlschreiber bt Daniel Brands 6-4, 6-4; Santiago Ventura bt Oleksandr Dolgopolov Jnr 6-7(5), 6-3, 6-3; Nicolas Almagro bt Kristof Vliegen 6-3, 6-1.

At Rome (Italian International): Third round: Venus Williams bt Shahar Peer 6-3, 6-4; Serena Williams bt Andrea Petkovic 6-2, 3-6, 6-0; Nadia Petrova bt Alexandra Dulgheru 6-0, 3-6, 6-2.

At Estoril (Estoril Open): Women: Second round: Sorana Cirstea bt Michelle Larcher de Brito 7-5, 7-5; Anabel Medina Garrigues bt Elena Makarova 6-2, 6-3; Jarmila Groth bt Kristine Barrois 2-6, 6-1, 7-5; Arantxa Parra Santonja bt Julia Goerges 3-6, 7-5, 6-2; Anastasia Sevastova bt Kimiko Date Krumm 6-1, 4-2, retd.

Men: Second round: Arnaud Clement bt Alejandro Falla 6-4, 6-3. Doubles: First round: Rohan Bopanna & Aisam-ul-Haq Qureshi bt Colin Fleming & Ken Skupski 1-6, 6-3, 10-5.

At Belgrade (Serbia Open): Second round: Stanislas Wawrinka bt Alessio Di Mauro 6-1, 6-4; Igor Andreev bt Ivo Karlovic 6-4, 7-5; Sam Querrey bt Evgeny Korolev 6-3, 6-4 . — Agencies

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