PARIS, France - Many people's French Open favorite, Maria Sharapova, aims to thwart the momentum of rising Spanish star Garbiñe Muguruza, whose countrywoman, Carla Suárez Navarro, also seeks her first Grand Slam semifinal spot.
Court Philippe Chatrier
 Maria Sharapova (RUS #8) vs. Garbiñe Muguruza (ESP #35)
Head-to-head: Sharapova leads 1-0
Garbiñe Muguruza has proved an expert at handling pressure so far this fortnight, not yet surrendering a set, and following up her second round upset of World No.1 Serena Williams with two more victories. However, she will be contesting her first Grand Slam quarterfinal and will be going up against the red-hot Maria Sharapova.
"I know it's going to be a tough match," Muguruza said. "She's a very, very good player. I have nothing to lose. I'm going to do my best and try to enjoy it as much as I can. I'm going to rise to the challenge. I'll walk onto court with the mindset that will allow me to win, as I always do for all my matches."
Sharapova's three set triumph over Samantha Stosur in the fourth round improved her to 51-4 in her last 55 clay court matches and 16-1 on clay this season. It also put her into the quarterfinals here for the fourth straight year and improved her to 17-1 here going back to her 2012 title run.
"She is someone we have heard about being an up-and-coming player for a couple of years," Sharapova said of Muguruza. "This is certainly her breakthrough tournament, and she's playing with lots of confidence. It's going to be a challenge for me, but that's what I love about this game."
Court Suzanne Lenglen
 Carla Suárez Navarro (ESP #15) vs.  Eugenie Bouchard (CAN #16)
Head-to-head: Suárez Navarro leads 1-0
Carla Suárez Navarro has plenty of experience in Grand Slam quarterfinals, having competed in four of them, but she is still seeking her first semifinal berth. Standing in her way is Eugenie Bouchard, who is in terrific form - having routed Angelique Kerber in the fourth round for her eighth Top 20 win. That also extended the Canadian's career-best win streak to nine matches.
"She really has played well and has shown that she can play the important points really well," Suárez Navarro said of Bouchard. "She's a dangerous player. She has already reached a Grand Slam semifinal, whereas I have never done that. This is going to be a difficult match. I'm going to have to play really well."
"I think she has a very solid game," Bouchad said of Suárez Navarro. "I have practiced with her a few times. She can really create some good angles and rip the ball. She's also consistently in the Top 20, so she's a great player."
Read more details and stats about Tuesday's match-ups in our Match Notes.