The world No. 1 stands between Nadal and a 14th final at Roland Garros, while Stefanos Tsitsipas takes on Alexander Zverev in the other semifinal.
The four tennis players have all reached the semifinals of a Grand Slam tournament for the first time in their careers.
French athlete Alize Cornet was handed a code violation, sparking accusations of sexism.
The two men are playing for a place in the semifinal at Roland Garros.
Djokovic faces Dominic Thiem in the quarterfinal at Roland Garros.
The 24-time Grand Slam winner also said she would boycott Qantas because of the airline's support of gay marriage.
The Tunisian underdog beat world No.6 Dominika Cibulkova in Roland Garros on Thursday.
Tennis' only clay major is finally attempting to modernize.
The Russian returned from a doping ban in April.
The world No. 2 is due to play Frenchman Richard Gasquet on Tuesday.
The British No. 1 said he is criticizing himself when he shows anger while on the court.