Felix Auger-Aliassime 1st serve

Felix Auger-Aliassime (*2000 / CAN) - 1st service - follow-through stage 1, with optimal long-axis pronation of a helix form, during his winning three-set first-round match against Marc-Andrea Huesler (*1996 / SUI) - 2022 Swiss Indoors - Basel - Switzerland - October 2022