Age:35
Country:Switzerland
Residence: Fuellinsdorf, Switzerland
Turned Pro:2000
2016 Earnings:$173,099
Lorenzi beat Chiudinelli, 7-6 (14), 6-3, 4-6, 5-7, 7-5, in a match which lasted nearly five hours.
Switzerland still leads the Davis Cup relegation playoff tie, 2-1.
Mahut was the titleholder last year when Bautista Agut beat him in the quarterfinals en route to his maiden Topshelf Open title.
The Swiss have much to think about after Friday's singles split with France.
France snaps defending champion Czech Republic's winning streak; will host Switzerland if Swiss beat Italy in Geneva.
