French Open Day 2: Nadal, Djokovic and Muguruza win through

An unexpected rash of errors early in the second set allowed Paire into the match, and the world number 45 had a break point to lead 5-3, but Nadal snuffed out the danger and powered home.

Fourth seed Rafael Nadal also smoothly negotiated the potential stumbling block presented by Frenchman Benoit Paire yesterday, launching his bid for a 10th French Open trophy with a largely routine 6-1, 6-4, 6-1 win.

Defending French Open singles champions Novak Djokovic and Garbiñe Muguruza each enjoyed straight sets victories in opening round action at Roland Garros today.

Talented Austrian Dominic Thiem, seeded sixth and an outside bet for the tournament, plays Italy's Simone Bolelli on Suzanne Lenglen Court.

Reigning women's champion Garbine Muguruza began her Roland Garros defense with a straight-sets triumph over 2010 victor Francesca Schiavone.

Petra Kvitova will continue her comeback from a five-month absence, taking on American Bethanie Mattek-Sands.

"I can not believe in the first round we have two ex-champions", she said afterwards.

Fifth seed Milos Raonic also made light work of his Belgium opponent Steve Darcis, cruising to a 6-3, 6-4, 6-2 victory.

With eight-times grand slam champion Agassi making a fast exit from the stands at the conclusion of the match, Djokovic heaped praise on his new coach.

"I felt good on court played the important points well. I will try to learn as much as I can from him", said Djokovic. "It was not the best thing obviously but I promise you I will come back and will fight until the end".

"I pulled my back yesterday and specialists were saying I needed 48 hours, I was nearly sure I could not take it to court today", said Mladenovic, who burst into tears after a two-hour-59-minute tussle.

"I think this is exactly what I needed at this moment, a person like him who understands the reactions as a tennis player and a person".

Muguruza, who stunned Serena Williams in last year's final, triumphed 6-2, 6-4 to set-up a second round clash with Anett Kontaveit of Estonia.

Second seed Karolina Pliskova won for just the third time in six visits to Roland Garros with a 7-5, 6-2 victory over China's Zheng Saisai.

Rising German star Alexander Zverev, seeded ninth, begins his campaign against veteran Spaniard Fernando Verdasco later.

Jack Sock has fallen at the first hurdle at the French Open against a player he beat two weeks ago in Rome.

  • Julie Sanders