It was a busy day yesterday.
Wimbledon champion Angelique Kerber suffered a shock 6-4 6-2 defeat to world number 81 Anastasia Potapova.
But Roger Federer made a winning return to the French Open with a dominant first-round victory over Lorenzo Sonego.
The Swiss 20-time Grand Slam winner, playing at Roland Garros for the first time in four years, beat the Italian 6-2 6-4 6-4.
And Ukrainian ninth seed Elina Svitolina overcame a tricky first-round draw by beating seven-time Grand Slam champion Venus Williams in straight sets.