The 2021 U.S. Open is set to begin on August 30. A jam-packed field will take part in the festivities in New York, with Novak Djokovic as the headliner. He is looking for his 21st grand slam title and, with a win, Djokovic would become the first player since 1969 to win all four grand slams in a calendar year. Djokovic is the betting favorite at -150 according to the 2021 U.S. Open odds from Caesars Sportsbook. Daniil Medvedev is the top challenger at +400.

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

Calvert is the handicapper who called Stan Wawrinka winning the 2014 Australian Open at 60-1, the last Australian title won by someone other than Djokovic or Federer. In 2019, Calvert took down a huge score on Dominic Thiem winning Indian Wells at 80-1. 

And earlier in 2021, he nailed both of his bets for the Wimbledon men's singles final: Djokovic to win three sets to one (+275) and Djokovic to win and both players to win a set (+130).

Now, Calvert has scrutinized the latest U.S. Open odds and released his coveted best bets to win it all. We can tell you he's fading
Djokovic, even with the record-breaking 21st grand slam title on the line. "Fitness has to be a worry," Calvert told SportsLine before the tournament's draw.

Instead, Calvert is backing an underdog that would return more than 60-1! You ABSOLUTELY need to see who it is before locking in any 2021 U.S. Open picks of your own!

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