Career
His highest singles ranking was 826 and highest doubles ranking was 837 in 1986. In 1989 he ended his tennis career, and became a coach. He has coached a wide variety of players, including Monica Seles, Arantxa Sánchez Vicario, Mary Pierce, Ana Ivanovic, Caroline Wozniacki, Michael Stich, Greg Rusedski, Nicolas Kiefer, Tommy Haas and Mario Ančić, among others
He is also the former head of the Swiss Tennis Federation.