Organisers gave all 15,000 people at Court Philippe Chatrier for a ceremony celebrating Nadal's career on Sunday free T-shirts printed with the words 'merci, Rafa'.
Roland Garros turned brick-red with emotion as fans chanted "Merci Rafa" in a heartfelt tribute to Rafael Nadal.
Roland Garros held an emotional tribute to the 14-time French Open winner's career on the opening day of the tournament, six months after Nadal played his final match.
When a teenaged Rafa Nadal bounced in to Roland Garros in pirate pants and sleeveless shirt in May 2005 before scything through the draw, few realised it marked the start of an unprecedented era of sporting domination.
"In Roland Garros, knowing all the Spanish players who have won this tournament and be able to put my name on that amazing list is something unbelievable," Alcaraz told reporters.
"Unfortunately I have to tell you that I am not going to be playing in Monte Carlo. My body simply won't allow me," said the battle-weary Spaniard on social media.
The Spanish icon's bombshell decision came four days after the 37-year-old lost a Las Vegas exhibition to compatriot and world number two Carlos Alcaraz.
"It's a good thing that as a player I will not face him many times," said Nadal, who expects to retire in 2024 after a series of injuries limited his appearances on the circuit.
"Everywhere you look in Saudi Arabia, you can see growth and progress and I'm excited to be part of that," Nadal, who pulled out of the ongoing Australian Open with a muscle injury, said in a statement.
A hurting Rafa Nadal exhibited heroic mental strength to edge American 11th seed Taylor Fritz in a final set tiebreaker during a captivating Wimbledon quarter-final on Wednesday to keep alive his quest for a calendar year Grand Slam.
