Simplify the following text for a Grade 6 native English-speaking person.
Original: Cha Bum-Kun ( born 22 May 1953 in Hwaseong , South Korea ) is a South Korean football manager and former player , nicknamed Tscha Bum in Germany ( `` Cha Boom '' ) because of his name and his thunderous ball striking ability .
Simplified: Cha Bum-Kun ( born 22 May 1953 ) is a former South Korean football player .