Gallery: The story from day four at the 2018 French Open

We look back at day four at Roland Garros with some pictures.

World number one Simona Halep had to dig deep after a dismal first set against Alison Riske.

However, she rallied to dominate the remaining two sets to move into the second round.

Petra Kvitova made it 13 wins in a row.

And Elina Svitolina is into round three too as the WTA big guns keep on delivering.

Marco Trungelliti and his Gran can get back in the car, though, as he crashed out in round two.

But Novak Djokovic and family can hang around as he is into the third round. Poetry in motion.

Benoit Paire, silver (or is it grey) hair and all, is not looking for an ant, we assume.

Speaking of hair, here’s Naomi Osaka during her win over Zarina Dyas.

Kei Nishikori had to battle for his win over Benoit Paire.

Roland Garros in all its glory.

Down and dirty, but not down and out. Alexander Zverev was given a big scare before he pulled off a five-set win over Dusan Lajovic.

Another player who was down, but not out was Gael Monfils as he beat Martin Klizan in three sets.

Caroline Wozniacki was in a hurry as she dropped only one game en route to victory over Georgina Garcia Perez from Spain.