He was courtside yesterday as Djokovic opened his campaign with an emphatic 6-3, 6-4, 6-2 victory over Marcel Granollers and will be on hand for a maximum of just two more matches of the champion's title defence.
The unseeded Haase defeated Australian teenager Alex De Minaur 6-2, 6-3, 6-1 in his first round match on Sunday.
Zverev, coming off a title at the Italian Open, dropped the first set 6-4 then took the second 6-3. Reporter Kate Battersby noted that Agassi was "less than a picture of relaxation, fidgeting in his chair and keeping up a relentless point-by-point commentary with Djokovic's brother Marko".
Djokovic says the decision to begin working with Andre Agassi came after he realised something had to change if he was to maintain a level of success throughout his career. Paire is wildly inconsistent but has plenty of flair, and this was a relatively rare trip to the secondary Suzanne Lenglen court for a player who has made Philippe Chatrier his own backyard for the last decade.
"It's of course very frustrating every time I play against Nadal I think that I have missed something, so there are quite a lot of regrets there". Jelena Jankovic's 54th consecutive Grand Slam maiden draw appearance was a fleeting one as the three-time French Open semi-finalist was consigned to another first-round exit by Dutch qualifier Richel Hogenkamp.
The fourth seed arrives in Paris with three clay-court titles to his name this season - winning both Monte Carlo and Barcelona for a 10th time, while securing a fifth Madrid Masters crown. Aside from a hard-fought second set, he had little trouble in outclassing his opponent.
- Pironkova, who reached the quarter-finals at Roland Garros previous year, beat German Mona Barthel 6-0 6-4.
In the opening and deciding sets, Paire had no reply for Nadal's groundstrokes and overall strong game.