João Fonseca is making a habit of drawing big crowds at tennis tournaments — and of beating seeded opponents in his Grand Slam debuts.

Cameron Norrie and Sonay Kartal also safely through to second round, joining Emma Raducanu, Katie Boulter and Jacob Fearnley

The French Open's packed schedule led to some of the top players in the world playing on the smallest courts at Roland Garros.

This gallery, curated by AP photo editors, showcases highlights from the first round of the French Open tennis tournament at Roland Garros.

PARIS — Novak Djokovic experienced the lowest of lows — pulling out of the French Open after tearing the meniscus in his right knee — and the highest of highs — winning a long-sought Olympic gold medal for Serbia — at Roland-Garros last year. This trip to the site went smoothly, once he got going.

Roland-Garros is the last of the major tennis tournaments to trust human line judges over electronic calls, resisting technology in favor of the age-old method of pointing at some marks in the dirt.

Novak Djokovic has returned to Roland-Garros with a 6-3, 6-3, 6-3 victory over Mackie McDonald in the first round.

Having already <a href=" her design profile for Roland-Garros this year, Naomi Osaka debuted her sakura-inspired outfit in the Grand Slam event Monday.