Jannik Sinner set up a blockbuster Italian Open final against Carlos Alcaraz, after the world number one fought from behind to beat American Tommy Paul.
Playing on home soil in his first tournament since a three-month doping ban, Sinner was made to fight before eventually overcoming the 11th seed 1-6 6-0 6-3.
In front of a packed and partisan centre court in Rome, the 23-year-old stretched his unbeaten run to 26 matches and moved one win away from being the first Italian to win their home open since Adriano Panatta in 1976.
Earlier on Friday, Alcaraz dashed home hopes of an all-Italian final by beating Lorenzo Musetti 6-3 7-6 (7-4).