Simplify the following text for a Grade 5 native English-speaking person.
Original: Horst KÃ ppel ( born on May 17 , 1948 in Stuttgart , Germany ) is a German football manager and former player , who last worked as Head coach for FC Ingolstadt 04 .
Simplified: Horst KÃ ppel ( born 17 May 1948 ) is a former German football player .