Junior 1st Service 3.0

Kuba (*2012 / POL), MBTA student since his tennis beginnings, shows a very sound 1st service 3.0 with a practically perfect long-axis pronation powered by the core energy and an excellent eye/head position after the impact while playing with the DTBT Foam Ball FB-120 Green in the beautiful tennis court environment of the Hotel Park Szczawnica - Poland - August 2020