Aleksandra Wozniak, who progressed into the second round by winning 6-2 6-1 against Marina Erakovic of New Zealand. If she wins that game, Williams will play either German seventh seed Angelique Kerber or Hungary's Timea Babos for a place in the quarterfinals. That could mean a last-eight clash with world No. 1 Victoria Azarenka, who survived a second-set scare to beat 79th-ranked Romanian Irina-Camelia Begu 6-1 3-6 6-1 in her opening match on Centre Court. The Belorussian, who lost to Serena in the Wimbledon semifinals, will next face Maria Jose Martinez Sanchez of Spain. Serena and Venus also won their opening doubles match, beating Romania's Sorana Cirstea and Simona Halep 6-3 6-2 to set up a clash with Kerber and Sabine Lisicki. Lisicki also moved into round two of the singles, coming from behind to beat Tunisian teen Ons Jabeur -- ranked 297th -- and securing a match against Kazakhstan's Yaroslava Shvedova. The winner of that tie will likely face world No. 3 Maria Sharapova, who next plays Britain's Laura Robson. Former world No. 1s Kim Clijsters and Ana Ivanovic will meet in round three, while Czech sixth seed Petra Kvitova -- whose Wimbledon defense was ended by Serena Williams in the quarterfinals -- will take on Italy's Flavia Pennetta.