NEW YORK (AP) Venus and Serena Williams easily advanced to the quarterfinals of the U.S. Open doubles Sunday, beating the 12th-seeded Spanish team of Garbine Muguruza and Carla Suarez-Navarro 6-1, 6-0.

The sisters are bidding for their 14th Grand Slam doubles title, but first at Flushing Meadows since 2009. They are playing their first tournament together since the second round of Wimbledon in July when they quit after Serena looked disoriented and had trouble reaching balls. The reason given was that she was ill.

They next face the fourth-seeded Russian team of Ekaterina Makarova and Elena Vesnina, who beat Americans Vania King and Lisa Raymond 6-3, 6-7 (4), 6-2.

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