Former champ Muguruza survives in three; fifth seed Kerber departs in first round.
Gallery: Court Simonne-Mathieu
FFT president Bernard Giudicelli speaks during the inauguration of Court Simonne-Mathieu, while former champion Mary Pierce (L) watches on.
- ©Pauline Ballet / FFTStory so far: Garbi through, Kerber out
- ©Corinne Dubreuil / FFTSmooth opener for Stef
No.6 seed Stefanos Tsitsipas was untroubled in his straight-sets opening round win over Maximilian Marterer.
- ©Christophe Guibbaud/FFTWhat's new at RG2019?
Some of the most significant changes since Stade Roland-Garros opened in 1928.