The No. 4 seed in the men's draw is out of the French Open. Taylor Fritz, the top-seeded American man, went down in four sets in a stunning first round loss to Daniel Altmaier of Germany (7-5, 3-6. 6-3. 6-1).

Raducanu vs Swiatek is the third match scheduled for centre court on Philippe-Chatrier on Wednesday, after last year’s losing women’s finalist Jasmine Paolini has battled Ajla Tomljanovic from 11am BST and defending men’s champion Carlos Alcaraz then meets Fabian Marozsan.

French Open is underway but already some top seeds have fallen at Roland Garros. On the men’s side, fourth seed and last year’s US Open semi-finalist Taylor Fritz is the highest-ranked casualty so far.

Ninth seed Emma Navarro exits the French Open in just 57 minutes as she suffers a 6-0 6-1 first-round thrashing by Jessica Bouzas Maneiro.

The defending champs record straight-set victories, but fourth-seeded Taylor Fritz, ninth-seeded Emma Navarro and four-time Grand Slam winner Naomi Osaka drop their openers.

By Karolos Grohmann and Shrivathsa Sridhar PARIS (Reuters) -Defending champions Iga Swiatek and Carlos Alcaraz powered into the second round of the French Open but fourth seed Taylor Fritz and four-times Grand Slam winner Naomi Osaka were unable to avoid the Roland Garros trapdoor on Monday.

Follow live text and BBC 5 live radio commentary from the French Open at Roland-Garros, the second Grand Slam tournament of the year.

But the ninth seed broke to get herself on the board before suffering a 6-0 6-1 defeat - also known as a bagel and a breadstick. They do love a bakery here in Paris. It's another huge Grand Slam victory for Bouzas Maneiro, who also upset Marketa Vondrousova at Wimbledon last year when the Czech star was the defending champion.