Benoit Paire vs. Tommy Haas [PR]
There may be testiness. Paire has been on a racquet-throwing, ball-smashing roll of late, and while the 39-year-old Haas has mellowed, he’s still competitive enough to get irritated when he doesn’t live up to his former standards. These two were supposed to meet at the Australian Open, but Haas was forced to retire. Let’s hope we see a (probable) last glimpse of his stylish game in the capital of tennis style on Tuesday.
Novak Djokovic  vs. Gilles Simon
The late-afternoon showcase features the world No. 2 vs. the world No. 32. No. 2 has won 10 of their 11 career matches, but the last one, at the Australian Open in 2016, went five sets. Simon frustrated Djokovic into 100 unforced errors on hard courts that day. Can he do something similar on clay? We’ll find out; these two veterans have never met on dirt.