BERLIN. Runner-up Maria Sakkari advanced to the second round of the Berlin Open on Tuesday with a 6-3, 6-2 win over France’s Léolia Janjan, while Andrea Petkovic delighted home fans by upsetting Garbiñe Muguruza.

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Petkovic beat fifth-placed Muguruza 7-6(8), 6-4, her first victory over a top 10 player since defeating Petra Kvitova at the 2019 US Open.

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For reaching the quarterfinals, the German will play with the Belarusian Alexandra Sasnovich.

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Sakkari, who avenged her loss to Zhanjan in their only previous encounter in 2013, will next face Australian qualifier Daria Saville.

Ons Jaber started her season on grass with a win, beating Karolina Muchova 6-3, 6-3.

Playing for the first time since a shocking first-round loss at the French Open, fourth-placed Jabeur put in a solid performance, saving all four break points the Czech opponent faced.

Top-seeded Jaber, who reached the Wimbledon quarter-finals last year, will play US-qualified Alicia Parks.

The Tunisian will also team with the returned Serena Williams to play doubles in Eastbourne next week.

“Very happy to be paired with Serena,” said Jabeur. – When I found out about this, I was in seventh heaven with happiness. Such a privilege for me.”

Belinda Bencic beat Germany’s Jule Niemeyer 6-4, 5-7, 6-3 in another second round match against Anna Kalinska. Bencic beat the Russian in the same round in ‘s-Hertogenbosch last week.