Gauff takes on Krejcikova later.
Stefanos Tsitsipas produced a strong performance last night to reach the semi-finals of the French Open.
He beat second seed Daniil Medvedev in straight sets.
Fifth seed Tsitsipas will play sixth seed Alexander Zverev in the last four.
The quarter-finals fun continues.— Roland-Garros (@rolandgarros) June 9, 2021
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The semi-final line-up at Roland Garros will be completed today.
Thirteen-time champion Rafa Nadal faces Diego Schwartzman.
While Novak Djokovic goes up against ninth seed Matteo Berrettin.
17-year old Coco Gauff is involved in the quarter finals of the women's singles, taking on Barbora Krejcikova .
While defending champion Iga Swiatek plays 17th seed Maria Sakkari.