Roland Garros opened with tears, chants and a sea of brick-red T-shirts reading 'Merci Rafa' as the French Open paid an emotional tribute on Sunday to Rafael Nadal, the man who conquered its courts like no other.

The second of tennis' Grand Slam events gets underway on May 25 with the start of the French Open. The clay-court tournament is one where a slower surface speed puts an emphasis on the ability to win extended rallies and play off the baseline rather than relying on a dominant serve.