Jasmine Paolini just pulled off another one of those matches that makes you wonder if she’s secretly part machine, part tennis wizard. The Italian powerhouse clawed her way past Veronika Kudermetova in a Cincinnati Open semi-final that had more ups and downs than a roller coaster designed by someone with serious commitment issues.

Coco Gauff’s serving woes continued Friday night in Mason, Ohio, as the world No. 2 served up 16 double faults during a 2-6, 6-4, 6-3 defeat to world No. 9 Jasmine Paolini in the quarterfinals of the Cincinnati Open.

Jasmine Paolini advanced to the quarterfinals of the Cincinnati Open with a straight-sets win over Barbora Krejcikova, and the Italian was in a playful mood in her on-court interview