Keira Brown - 1st Service 3.0

Junior tennis beginner Keira Brown (*2008) - 1st service 3.0 - follow-through with excellent long-axis pronation. Keira shows at her first-ever tournament that junior players when developed properly can play the Tennis 3.0 strokes while using the same principles as the best world-class players do - Bachenbülach - Switzerland - July 2020