QUARTERFINAL MATCHESTsvetana Pironkova (BUL)
Garbine Muguruza (ESP)  vs Shelby Rogers (USA)
ROUND OF 16 MATCHESSerena Williams  vs Elina Svitolina (UKR) . Due to the inclement weather, the top part of the draw, which includes the #1 seed and both Williams sisters is a round behind from where it typically is. However, I think this will only delay not derail, Serena's defense of her French Open crown. That being said, Svitolina is a good young player who has shown herself to be fearless against Serena before. But Serena should be ready for her, and once Serena gets to the business end of a tournament she is tough to beat. That being said, playing one match a day for the next four days in order to win the tournament will be an interesting test of stamina for the G.O.A.T Mad Professah's Pick: S. Williams.
Carla Suarez Navarro (ESP)  vs Yulia Putintseva (KAZ)
Timea Bacsinszky (SUI)  vs Venus Williams (USA) . The one person who was probably not sad about Monday's complete washout of play was 35-year-old Venus Williams. She probably needed the time to recover from having to play two doubles matches on Sunday. However, it's not clear if Venus still has enough game to defeat the wily Swiss player, who last year made the semifinals here and took a set off Serena in that match. If the Venus Williams circa 2003 shows up then it is very possible she could produce yet another all-Williams match-up at a major, (if she wins her quarterfinal match) but oftentimes one of the siblings blinks when this possibility is on the table, and Serena ain't blinking for anybody right now. There's a reason why Bacsinsky is actually higher seeded than Venus, so the American winning would actually be the upset. Mad Professah's pick: Bacsinszky.
Madison Keys (USA)  vs Kiki Bertens (NED)