Cilic, 34, was a French Open semi-finalist last year and ranked as high as third in the world.
The French Open semi-final between Casper Ruud and Marin Cilic was held up for 13 minutes on Friday when a protestor ran onto the court and tied herself to the net.
French Open 2022: Casper Ruud beat Marin Cilic 3-6, 6-4, 6-2, 6-2 in the semi-final to set up a clash with Rafael Nadal in the final.
Rafael Nadal hopes to celebrate his 36th birthday on Friday by reaching a 14th French Open final which by his own admission could be the last of his record-breaking career in Paris
Marin Cilic and Casper Ruud moved into the French Open semi-finals for the first time on Wednesday courtesy of two big-hitting displays which overwhelmed their opponents.
US Open champion Daniil Medvedev was beaten by 20th seed Marin Cilic 6-2, 6-3, 6-2 in just 1hr 45 min on Court Philippe Chatrier.
Russia edged closer to winning a third Davis Cup on Sunday after Andrey Rublev beat Croatia's Borna Gojo 6-4, 7-6 (7/5) to give them a 1-0 lead in the final.
French Open: Roger Federer, the oldest man in the draw at 39, lost his cool before staging a comeback to defeat Marin Cilic.
Top-ranked defending champion Ashleigh Barty advanced to the quarter-finals of the Miami Open on Monday by outlasting former world number one Victoria Azarenka 6-1, 1-6, 6-2.
Dominic Thiem will face Jack Sock in the second round of the French Open.