"So far plenty of information, plenty of things to kind of process". "I'm patient. For us this is a great way to start off our collaboration and friendship and to get to know each other and then see where it takes us".
With 1999 French Open champion Agassi in the players box for the first time after agreeing a short-term coaching role, Djokovic experienced some trouble against the world No. 77, being broken four times.
Agassi, the 1999 Roland Garros champion and eight-time major victor, had only committed to just a "few matches" with the world number two.
Djokovic is to face either compatriot Janko Tipsarevic or Portugal's Joao Sousa for a place in the last 32.
One thing Sock is certain about: "I will not", he said, "be in Mallorca next year". It's not anything that really will significantly change my game.
"The match I played was good". "At a set and 4-1 up, I just played a couple of sloppish games. It's just matter of fine-tuning it in the right way".
David Goffin of Belgium has beaten French qualifier Paul Henri-Mathieu in straight sets to reach the second round of the French Open. Trading baseline rallies, they exchanged breaks to leave the Frenchman leading 4-3.
The fourth-seeded Muguruza won 15 points in a row from being up 3-2 in the first set and broke her Italian opponent five times.
In all, of the 11 men from the United States who entered the main draw at Roland Garros, only Isner and No. 25 Steve Johnson remain in the tournament. But for me, it makes me happy to feel myself competitive and playing well in every event that I have played. "That's great for me", Nadal said of his preparations.
"It was a tough first match, Schiavone can be a very tricky player", the 23-year-old Spaniard said. During the second I suffered a little bit, especially at 4-3, bad point.
On the resumption, Muguruza won 12 successive points to take the set and then went an early break up in the second.
Isner, best known for winning the longest match in tennis history at Wimbledon in 2010, has one of the best serves on tour.
While Djokovic, seeded second, went on to see off Granollers in straight sets, the 6-3, 6-4, 6-2 scoreline didn't say the whole story, with Granollers making it quite hard for Djokovic, particularly in the second set.
- Switzerland's Stan Wawrinka, the men's third seed, beat Jozef Kovalik of Slovakia 6-2 7-6 (6) 6-3.