With his back against the wall, Matteo Berrettini raised his level on serve to overcome American Mackenzie McDonald 3-6, 7-6(2), 6-3 and set up an all-Italian final against Lorenzo Musetti at the Tennis Napoli Cup, here on Saturday.

In a hard-fought clash at the ATP 250 event, Berrettini struggled on serve in the first set and was troubled by a foot injury, receiving a medical timeout at 2-5 in the opener.