One year ago, he exited Paris as just another young hopeful after a third-round defeat. Now, that result feels as if it happened in another era entirely.

Is the 2016 French Open women's champion in danger of falling at the first hurdle against her Estonian opponent?

Alexander Zverev, Diego Schwartzman, Caroline Garcia and Elise Mertens also advanced, but Venus Williams was ousted on Sunday at Roland Garros.

Londero, who is from Cordoba, is in an area of Argentina that has received government approval to lift restrictions on activity.

The Swiss is bidding for his eighth Western & Southern Open crown.

The 25-year-old Argentine was trying to become the first man to reach the quarterfinals in his debut major since Alex Radulescu at 1996 Wimbledon.

The two unexpected winners have put forth their best showings at a Grand Slam.