Forget all that speculation about Serena Williams considering retirement after her emotional hand-to-heart gesture upon her Australian Open exit three months ago.
The 10th-seeded Frenchman is a two-time Grand Slam semifinalist, but he can't seem to win anywhere at the moment.
___4:55 p.m.U.S. Open champion Dominic Thiem has moved i...
3 Naomi Osaka, the U.S. Open champion.
Two-time Australian Open champion Victoria Azarenka, Johanna Konta and Elina Svitolina are also in Kenin's quarter.