Iga Swiatek and Carlos Alcaraz got their Paris Olympics campaign started with first-round victories on Saturday under closed roofs at Roland Garros, the site of their French Open titles less than two months ago.

Novak Djokovic also won in straight sets as he, like Swiatek and Alcaraz, opened a bid for a first Olympic gold medal.

Djokovic’s second-round opponent could be long-time rival Rafael Nadal, who was scheduled to play his opening singles match on Sunday.

The Serb routed 36-year-old Matthew Ebden 6-0, 6-1 in 53 minutes. The Australian doubles specialist jokingly offered his racket to a fan inside Court Phillipe Chatrier after losing the first eight games.

He then earned the biggest cheer when he celebrated winning a game at 4-0 down in the second set, by pulling the front of his yellow shirt over his head and baring his chest to roars.

Djokovic was left wondering why Ebden, who pairs up with Rohan Bopanna on the doubles tour, was even allowed to play in the singles.

Three-time grand slam doubles champion Ebden was only placed in the singles draw after a raft of leading singles players pulled out
due to illness or injury, including world No. 1 Jannik Sinner of Italy.

Earlier, Poland’s Swiatek grabbed the last four games to beat Romania’s Irina-Camelia Begu 6-2, 7-5 while reigning French Open and Wimbledon champ Alcaraz defeated Lebanon’s Hady Habib 6-3, 6-1.

Italy’s Jasmine Paolini, runner-up to Swiatek at the French Open in June, was the first tennis player to win a match at these Games, beating Romania’s Ana Bogdan 7-5, 6-3.