The 2021 French Open continues with an intriguing men's semifinal matchup on Friday. No. 5 seed Stefanos Tsitsipas faces No. 6 seed Alexander Zverev, with a berth in the final on the line. Tsitsipas is a -250 favorite (risk $250 to win $100) according to William Hill Sportsbook, while Zverev is a +190 underdog. The over-under for total games is 37.5 in the latest 2021 French Open odds from William Hill Sportsbook.

Before you lock in any 2021 French Open men's semifinal picks or props, you MUST see who Sean Calvert is backing.

Calvert is the famed handicapper who called Stan Wawrinka winning the 2014 Australian Open at 60-1, the last Australian title won by someone other than Djokovic or Roger Federer. 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 released best bets for the Tsitsipas vs. Zverev match, including a STRONG play on the outright winner and a prop that returns almost 3-1! You ABSOLUTELY need to see all of Calvert's picks and analysis of the 2021 French Open before you bet.

So who wins Tsitsipas vs. Zverev? And which pick could lead to a HUGE return? ... Join SportsLine right now to see Sean Calvert's top 2021 French Open semifinal picks, all from the acclaimed expert who called Stan Wawrinka winning the 2014 Australian Open at 60-1!