Novak Djokovic and Matteo Berrettini will square off at Roland-Garros in the night session on Wednesday, where the crowd will be allowed to stick around beyond 9pm for the first time this fortnight.
>> FOLLOW DJOKOVIC V BERRETTINI LIVE SCORES HERE
The winner will take on 13-time champion Rafael Nadal or Diego Schwartzman in the men's semi-finals.
Coco Gauff or Barbora Krejcikova will reach a maiden women's singles Slam semi-final, while fellow first-time quarter-finalist Maria Sakkari could do the same should she upset defending champion Iga Swiatek.