Petr Nesterov will advance against Calvin Hemery in Sion on August 17, 2026. The 23-year-old Nesterov, born March 7, 2003, sits 396th in the ATP with 124 points and a win will lift his profile in the Sion draw. Calvin Hemery, a 31-year-old who resides in Paris, will be the vanquished veteran. Tourn…