Jannik Sinner is just as comfortable on the hard courts of Miami as he is on the red clay of Rome, where he’s scheduled to face Rafael Nadal on Wednesday. Lorenzo Musetti modeled his all-court game after Roger Federer. And Matteo “The Hammer” Berrettini has one of the biggest serve-forehand combinations in tennis. The Italian men that are starting to crowd the ATP's Top 100 — there are currently 10 ranked that high, a national record that arrives just in time for this week’s Italian Open — are all-court players.