Here are my predictions for the men's quarterfinals at the 2019 Wimbledon Championships. I have also predicted the men's quarterfinals. Last year I predicted 2 of 4 men's quarterfinals correctly and 4 of 4 women's quarterfinals correctly. I also correctly predicted 3 of 4 women's quarterfinals this year.
Novak Djokovic (SRB)  vs David Goffin (BEL) . Djokovic has yet to lose a set at this year's tournament and is currently on 31 of 32 Grand Slam winning streak. His only loss since winning Wimbledon 2018, US Open 2019 and Australian Open 2019 is a semifinal loss to Dominic Thiem on clay at last month's Roland Garros. He holds a 5-1 head-to-head lead over David Goffin but the two have never played on grass. People are saying the grass courts this year are playing like clay courts, which is Goffin's best surface. The big 3 have been putting on a clinic on how to dismantle opponents; Djokovic only gave up 8 games in his previous round. I don't think the score will be that lopsided in the quarterfinal but the result will be the same. Mad Professah's pick: Djokovic.
Rafael Nadal (ESP)  vs Sam Querrey (USA). Sam Querrey and Rafael Nadal have not played for more than 2 years, but the American's last meeting was a victorious one on the hard courts of Acapulco. Querrey is putting on a serving clinic in this tournament and has only had his serve broken once! He knows that he can beat the very best at Wimbledon, having done so in 2016 when he defeated Djokovic, who had just achieved the historic Nole Slam. That defeat lead to a 2-year spiral for Djokovic which he only pulled out of at last year's Wimbledon. The problem for Querrey is that the courts are resembling a clay court and that is a bad sign for anyone not named Nadal. Mad Professah's pick: Nadal.
Roger Federer (SUI)  vs Kei Nishikori (JPN) . Kei Nishikori has a respectable head-to-head of 3-7 against the Greatest of all Time, and even won their last meeting in straight sets at the 2018 Year-End Championships in London. Federer won their only grass meeting in Halle. Nishikori has done something unusual for him at this year's Wimbledon: he lost only 1 set and won 12 to reach the qurterfinals. Typically the Japanese #1 gets caught up in long 5-set matches in early rounds of majors and thus doesn't get very far in the second week. Will it matter the way Federer is playing at the moment as evinced by his demolition of young excellent grass-court player in Matteo Berettini? Probably not. Mad Professah's pick: Federer.