Thirteen-time champion Rafael Nadal looks to add another title to his profile when the 2021 French Open begins Sunday (May 30). Nadal is the -120 betting favorite in the 2021 French Open odds from William Hill Sportsbook, followed by Novak Djokovic at +300. They landed in the same half of Thursday's draw along with Roger Federer -- thus, only one could reach the final. 

Before you pick the 2021 French Open men's champ, you need to see who Sean Calvert is backing.

Calvert is the famed handicapper who called Stan Wawrinka winning the 2014 Australian Open at 60-1. In 2019, Calvert took down a huge score on Dominic Thiem winning Indian Wells at 80-1, among many stunning calls. Anyone following his picks is way up.

Now, Calvert has scrutinized the latest French Open odds and released his coveted best bets to win it all. We can tell you he's fading Daniil Medvedev, even as a prominent name with high-end talent. He has "only a slightly better chance than I have of winning the French Open," Calvert told SportsLine before the tournament's draw.

Instead, Calvert is high on several long shots, including one who would pay off HUGE. He is "peaking at the right time after having missed much of the early season due to injury," Calvert said. You ABSOLUTELY need to see who it is before locking in any 2021 French Open picks of your own!

Who wins the 2021 French Open men's singles title? Which monumental long shots could take the crown? ... Join SportsLine right now to see Sean Calvert's detailed 2021 French Open picks, all from the renowned tennis expert who called Stan Wawrinka winning the Australian Open at 60-1!