Defending champion Novak Djokovic took his French Open first round record to 20 wins out of 20 as he eased past French wildcard Pierre-Hugues Herbert on Tuesday.
Djokovic, chasing a fourth title at Roland Garros and record 25th Grand Slam triumph, came through against his 142nd-ranked opponent 6-4, 7-6, 6-4.
The 37-year-old, who saw career-long rival and 14-time French Open champion Rafael Nadal exit the tournament on Monday, arrived in Paris under a cloud.
For the first time since 2018, he is without a title and has yet to reach a final this season.
He has also endured recent misfortunes being accidentally hit on the head by a metal water bottle in Rome and then suffering stomach problems in Geneva.
Djokovic has advanced to the French Open quarter-finals or better every year since 2010.
He will face Roberto Carballes Baena of Spain for a place in the last 32.
Elsewhere, Casper Ruud started his quest for a maiden French Open title with a commanding victory over Brazilian qualifier Felipe Meligeni Alves on Tuesday.
Ruud, who has been the runner-up at Roland Garros for the past two years, easily secured a 6-3, 6-4, 6-3 win in his first-round match.
Ruud entered the tournament with confidence, having recently won clay-court titles in Barcelona and Geneva.
Ruud has faced tough challenges in the finals at Roland Garros.
Last year, he was defeated in straight sets by Novak Djokovic and in 2022, he lost to Rafael Nadal in a similarly one-sided final.
Additionally, he was beaten by Carlos Alcaraz in the 2022 US Open final.