Four-time Wimbledon champion and top-seeded Novak Djokovic faces his nemesis, Roberto Bautista Agut, in the first of two Wimbledon semifinals on Friday. The match begins at 8 a.m. ET from Centre Court at the All-England Club. Bautista Agut, a 31-year-old Spaniard, has beaten Djokovic in both matchups this year and three of the past five. They’ve never played on grass, though, and Bautista Agut will be playing in his first Grand Slam semifinal. Bookmakers list Djokovic as a -1200 favorite (risk $1,200 to win $100) in the latest Djokovic vs. Bautista Agut odds, with the latter getting +840 (risk $100 to win $840) as the underdog. Djokovic is a -140 favorite (risk $140 to win $100) to win in straight sets and is favored by 7.5 on the game spread, among many other wagering options. Before you make any Djokovic vs. Bautista Agut picks and 2019 Wimbledon predictions for the men’s semifinals, see what British grass-court tennis expert Sean Calvert has to say.

An uncanny handicapper who’s been cashing consistently for six-plus years, Calvert took down a huge score in March on Dominic Thiem winning Indian Wells at 80-1 and followed that up last month by calling Adrian Mannarino’s Libema Open title at 25-1. The Libema Open is a grass-court event like Wimbledon, a surface Calvert knows better than anyone. Not only did he call Andy Murray’s 2013 and 2016 Wimbledon championships, but anyone who has followed his grass-court picks is up nearly $4,400.

In Wednesday’s quarterfinals, Calvert told readers to bet Roger Federer at +230 (risk $100 to win $230) to defeat Kei Nishikori three sets to one — and that’s exactly what happened.

Now, Calvert has dialed in on Djokovic vs. Bautista Agut and locked in multiple best bets. Not only is he picking the winner, he’s also betting the game spread and how many sets the match lasts, He’s sharing it all only at SportsLine.

Calvert knows Djokovic, the world’s top-ranked player, comes in off a clinical, 6-4, 6-0, 6-2 quarterfinal destruction of David Goffin in which Djokovic converted seven of 10 break points. This is Djokovic’s ninth Wimbledon semifinal. And all-time, he’s 7-3 against Bautista Agut.

But just because Djokovic is the favorite with more Grand Slam experience doesn’t mean he’ll roll over Bautista Agut.

The Spaniard has a tendency to frustrate Djokovic, as Bautista Agut showed in best-of-three sets wins at Miami and Doha this year. In most matches, Djokovic wears down his opponent. But Bautista Agut never gets tired, and his deep, flat groundstrokes prevent opponents from hitting winners. Like Djokovic, Bautista Agut has lost only one set at Wimbledon.

“The low bouncing surface makes RBA’s flat hits tricky to defend. If he can keep his composure, he has a chance to make the Serb work quite hard here,” Calvert told SportsLine.

Calvert is confident he has the Djokovic vs. Bautista Agut winner, plus he’s picking how many sets the match lasts and who covers the game spread. As a bonus, he’s including multiple best bets for the second semifinal featuring Roger Federer vs. Rafael Nadal. You can only see his in-depth analysis and picks at SportsLine.

Who wins Djokovic vs. Bautista Agut? And how many sets does the match last? Visit SportsLine now to see Sean Calvert’s strong 2019 Wimbledon picks for the semis, all from the British tennis expert who’s up nearly $4,400 on grass-court events.