Former World No.1 Naomi Osaka is yet to rediscover her Grand Slam winning ways, but legendary coach Rick Macci sees her making a return to the top ten on the WTA Rankings before the season is over.

In the third-longest match of the WTA season, Laura Siegemund outlasted Tatjana Maria, her friend, rival -- and fellow 37-year-old -- in a match that spanned nearly three-and-a-half hours.

Maria Sharapova is a global superstar, but her transformation over the years has been incredible. Let's take a look!