On a relatively quiet Day 2, Rafael Nadal started his pursuit of a record 10th French Open championship with a 6-1, 6-4, 6-1 victory over Benoit Paire. Other seeded men advancing included No. 5 Milos Raonic, No. 7 Marin Cilic and No. 10 David Goffin, while No. 14 Jack Sock, the top-ranked U.S. man, and No. 31 Gilles Simon — both in Nadal's section of the draw — plus No. 32 Mischa Zverev all lost.
Defending women's champion Garbine Muguruza and former No. 1 Caroline Wozniacki won in straight sets, but two seeded American women joined Sock on the way out: No. 19 CoCo Vandeweghe and No. 25 Lauren Davis.
Leave it to the No. 4-seeded Nadal to win relatively simply and then lament a portion of his performance.
"For me," he said, "it's important to serve a little bit better than what I did today."
Djokovic made it sound as if Agassi's role right now is more about offering life advice than tennis tips.
Sunglasses perched atop his shaved pate, leaning forward with his chin resting on his hands and elbows on his knees, Agassi occasionally applauded during the 2½-hour first-round match. Later, Agassi — who counts the 1999 French Open among his eight Grand Slam titles — declined to take questions from a reporter.
Djokovic, for his part, had plenty to say about their partnership, which sounds more like a brief experiment than the start of a long-term arrangement, even if that's what the Serb insisted he hopes it can become.
"Well, he's going to stay ... I hope, 'til the end of this week. Then he has to leave, because he has some scheduled ... things that he cannot reschedule. So that's all," said Djokovic, whose 29 unforced errors were one more than Granollers' total. "I'm going to try to use the time spent with him as best as I can, as best as we can. So far, plenty of information, plenty of things to kind of process."