Pablo Andujar v Casper Ruud
Casper Ruud's playing style is not popular, but it's effective, especially on clay. This, combined with Andujar's playing hours on court, playing multiple three set matches being a 36yo is taking a toll. Ruud, 22yo is likely to move Andujar around and tire him out.
Denis Shapovalov v Pablo Cuevas
Shapovalov has not been very consistent on clay. Cuevas has defeated some great players to get to the SF like Opelka (SF in Rome), Dimitrov and young Frenchman Arthur Cazaux. Cuevas' playing style is more consistent than that of Shapovalov, and for mainly this reason, Cuevas has a good opportunity to reach the final.