The tournament is taking place in Paris.
The men's semi finals take place today at the French Open in Paris.
13 time champion Rafael Nadal of Spain faces Germany's Alexander Zverev.
Nadal turns 36 today and is bidding for a 22nd Grand Slam title.
The other last four encounter sees Norway's Casper Ruud to go head to head with Croatia's Marin Cilic.

Saturday Morning Sports Update
Big Saturday Ahead For Women's Football And Camogie Team
Friday Sports Update
New York City Defender Kevin O'Toole In Ireland Squad For Final World Cup Qualifiers
The Ireland Team Have Been Named For Their Game Against Japan
Thursday Morning Sports Update
Tipperary Have Seven Players Included On This Year's PwC Hurling All-Star Team
Ellistown's Michael Noonan Scores 1 of 4 Goals To Beat Panama In The Under-17 World Cup Campaign