Maria will be taking on No.18 seed Eugenie Bouchard of Canada for a place in the French Open on Thursday.
Maria has played the 20-year-old twice before and leads the series 2-0. Here are the matches they have played against each other:
2013 Miami R2: Maria won 6-2 6-0
2013 French Open R2: Maria won 6-2 6-4
Maria will be playing her fifth French Open semi final and Bouchard will be making her second appearance in a Grand Slam semi.
The match will be played on Court Philippe Chatrier and will start at 3.00 PM local time (9.00 AM ET & 6.00 AM PT).