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5 things to watch in French Open women's singles

AFP Logo By by Jed Court of AFP | Slide 1 of 6: Victoria Azarenka of Belarus returns the ball to Naomi Osaka of Japan during the Rome's WTA Tennis Open tournament at the Foro Italico, on May 14, 2018 in Rome. (Photo by TIZIANA FABI / AFP)        (Photo credit should read TIZIANA FABI/AFP/Getty Images)

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Serena Williams and Victoria Azarenka are making their returns to Grand Slam tennis at the French Open, while world number one Simona Halep is bidding to finally win her first major title.

Here are five things to watch out for in the women's singles at Roland Garros ahead of the start of the tournament on Sunday:

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