The biggest names in tennis are in action on Monday, looking to advance to the quarterfinals of the 2015 French Open. One member of the Big Four moved on earlier in the day, and the rest are expected to do the same.

Continuing his match with Gael Monfils that was suspended on Sunday, Roger Federer won in four sets, reaching the quarterfinals for the 11th time in his career. He’ll go on to a matchup with Stan Wawrinka, who along with Kei Nishikori and Joe Wilfried Tsonga, won on Sunday.

David Ferrer joins Federer in the next round, beating Marin Cilic in straight sets. He’ll face the winner of Andy Murray vs. Jeremy Chardy.

Novak Djokovic and Rafael Nadal met in last year’s final, and they could be on a collision course to meet in this year’s quarterfinals. Their potential matchup will be determined on Monday, after they both try to advance as heavy favorites.

The sport’s No.1 player is expected to have little trouble with Richard Gasquet, who’s ranked 21st in the world. Djokovic is a -5000 favorite over his opponent, who’s been given +1600 betting odds to pull off the upset.

Rafael Nadal’s quest to win a 10th title in 11 years continues when he takes on up-and-comer Jack Sock. The American is the only thing that stands in the way of another battle between Nadal and Djokovic. While Nadal isn’t the heavy favorite at Roland Garros like he’s been in years’ past, a loss to Sock would be a considerable surprise. He’s a -1200 favorite against the 22-year-old.

On the women’s side, Serena Williams takes on American Sloane Stephens. Williams is an even heavier favorite to take this year’s title, now that Maria Sharapova has been knocked off. The No.2-ranked women’s player was defeated by Lucie Safarova.

The full slate of second round matches and start times can be found at the French’s official site here.

TV Channel: ESPN2 (5 a.m ET - 10 a.m. ET); Tennis Channel (10 a.m. ET - 3 p.m. ET)

Live Online: A live stream is available at Tennis Channel Everywhere here and WatchESPN