Books by Mike Diehl

Mike Diehl is a graduate trainer for performance sports He is a mental and relaxation trainer as well as a specialist for physical fitness at the German Armed Forces. Since 2008 he has been the fitness coach of the German Fed Cup team (women's national team in tennis) Felix Grewe is a German sports journalist and has worked for the trade tennis magazine MAGAZIN. He is a tennis and fitness specialist and also an expert in public relations and social media. Of course, he trains regularly using the methods of Mike Diehl.