@TennisLegende @stanwawrinka @richardgasquet1 @abnamroopen @atptour @TennisTV J’adore les deux mais Stan quand même.

@TennisTV @abnamroopen Breaking: A studying recently completed and published in the NHJM concluded that a loud grunt at the point of contact was counter productive. The study found that players channeling that energy quietly inward were more successful.