Roger Federer Service 3.0

Swiss tennis megastar Roger Federer (*1981 / SUI) - service in his winning quarterfinals match against his Swiss compatriot Stan Wawrinka - showing a perfect follow-through based on the long-axis pronation of a helix form, the low-back bending is rather a disadvantage - Court Suzanne Lenglen - Stade Roland Garros - Paris - France - June 2019