Simplify the following text for a Grade 8 native English-speaking person.
Original: Joel Natalino Santana ( born on December 25 , 1948 , in Rio de Janeiro , Brazil ) is a Brazilian football manager and former football player , last coaching South Africa ahead of the 2010 FIFA World Cup .
Simplified: Joel Santana ( born 25 December 1948 ) is a former Brazilian football player .