The 2020 French Open semifinals begin Friday at 8:50 a.m. ET with No. 2 seed Rafael Nadal taking on No. 12 Diego Schwartzman. Nadal is a -700 favorite, with Schwartzman getting +450. Before you make any picks on this must-see match, you NEED to see who Sean Calvert is picking.

Calvert is the famed handicapper who took down a huge score on Dominic Thiem winning Indian Wells at 80-1 last year, among many stunning calls. He's racked up seven straight profitable seasons betting tennis. 

At Wimbledon last year, Calvert told his followers to grab 3-1 odds on Novak Djokovic facing Roger Federer in the final, adding Djokovic would win it all. The result: Djokovic and Federer cruised into the finals, with Djokovic winning the longest men's singles final in tournament history. Anyone who followed Calvert's advice was handsomely rewarded.

For the 2020 French Open semifinals, we can tell you Calvert is betting on Schwartzman to win at least one set at -120. But he also has two other strong plays, including one on the outright winner and whether the match goes Over or Under 33.5 games. You ABSOLUTELY need to see all of Calvert's picks and analysis before you bet.

Who wins Nadal-Schwartzman? What are the three best bets you can make on this French Open semifinal? ... Join SportsLine right now to see Sean Calvert's coveted picks, all from the renowned tennis expert who's had seven straight profitable seasons! -- Use promo code TENNIS to get your first month of SportsLine for a buck!