„A must for every tennis-school, academy and club. Stephans show gives you wonderful insight into the mechanisms of the mental game of Tennis. A fantastic mix between entertainment and helpful tools to work on your mental toughness. No matter if You are a club- player or an athlete with professional ambitions: You learn what You need to be mentally tough!“, Christoph Kellermann, former german national coach and publisher of »TWNR.de – HardcoreTennis«. Steph has held the »HEAD-Man Mental Shows« over a 50 times in Germany, Austria, Switzerland and Italy.