Simplify the following text for a Grade 11 native English-speaking person.
Original: George Edward Foreman ( nicknamed `` Big George '' ) ( born January 10 , 1949 ) is an American two-time former World Heavyweight Boxing Champion , Olympic gold medalist , ordained Baptist minister , author and successful entrepreneur .
Simplified: George Edward Foreman ( January 5 , 1949 ) is an American two-time World Heavyweight Boxing Champion and entrepreneur .