Simplify the following text for a Grade 7 native English-speaking person.
Original: Jennifer Marie Capriati ( born March 29 , 1976 , in New York City ) is a former professional tennis player , ranked number one in the world for a short time , and the winner of three women 's singles championships in Grand Slam tournaments .
Simplified: jpg thumb ( 450x600 ) px right Jennifer Capriati ) ) Jennifer Capriati is an American tennis player . She was born during 1976 .