Here are my predictions for the men's semifinals at the 2018 French Open. Last year I correctly predicted 2 of 4 women's quarterfinals, 1 of 2 women's semifinals, 4 of 4 men's quarterfinals, and 2 of 2 men's semifinals. This year I correctly predicted 4 of 4 women's quarterfinals, 2 of 2 women's semifinals and 3 of 4 men's quarterfinals.
Rafael Nadal (ESP)  vs Juan Martin del Potro (ARG) . For the second round in a row the World #1 will be facing off against a player from Argentina. As I predicted before the quarterfinals, diminutive Diego Schwartzman was able to end Nadal's streak of 37 consecutive sets won at Roland Garros that extends back to 2015. In fact for a full set and a half, "Little Diego" outplayed the King of Clay on his home turf of Court Philippe Chatrier. Del Potro continued his dominance of Marin Cilic, extending his head-to-head record to 11 and 2. The decidedly not diminutive Argentine is in his first semifinal at Roland Garros since 2009 as a result and will face Nadal. Interestingly, although the two have played 14 times, Del Potro has a healthy 5 wins. Unfortunately, none of these wins have come on clay (oddly, the two have only met twice on that surface including one straight sets win for Nadal way back in 2007 at Roland Garros). The two have also met a fair number of times in major tournaments (four) and Nadal leads that head-to-head 3-1. In fact, the two met at this stage of the 2017 U.S. Open and Nadal prevailed relatively easily on his way to winning his 16th major title. Mad Professah's pick: Nadal.
Marco Cecchinato (ITA)