Retired from ATP Circuit in 1989...Worked for IMG Tennis managing Haas, Steeb, Hingis, Majoli...1996-1998 was Managing Director/International Vice President of IMG Germany...1999 founded Drewes&Keretic, a sports marketing consulting agency with some of the top German brands as clients and winner of the International Sports Sponsoring Award, International Public Sponsoring Award and the German PR Bronze Medal...Was the West German junior champion in 1977-78... Represented West Germany in 1987 World Team Cup (d. Nystrom and McNamee)...Also member of German Davis Cup team in 1987...Resides in Hamburg with wife Eva and children Deryne and Alyssa.