Novak Djokovic's partnership with Andre Agassi got off to a winning start at the French Open.
Aljaz Bedene is considering switching his allegiance back to Slovenia to try to compete in the Olympics.
Petra Kvitova made an emotional and victorious return to tennis on the opening day of action at the French Open but world number one Angelique Kerber was knocked out.
Angelique Kerber became the first women's top seed in the Open era to lose in the opening round of the French Open on Sunday.
The German has been badly out of form in 2017, despite sitting at the top of the rankings, and the only surprise about her 6-2 6-2 loss to Ekaterina Makarova was the magnitude of it.
Russian Makarova, ranked 40, won five of the first six games and, although she came under more pressure in the second set, she kept Kerber at arm's length.
Petra Kvitova had already won simply by walking on court for her match against Julia Boserup but victory and a place in the second round of the French Open was an added bonus.
Petra Kvitova said she has already won her biggest fight ahead of what is sure to be an emotional return to tennis.
Top seed Andy Murray will play Russia's Andrey Kuznetsov in the first round of the French Open.
Seventh seed Johanna Konta will play Chinese Taipei's Hsieh Su-wei in the first round of the French Open.