Simplify the following text for a Grade 3 native English-speaking person.
Original: He is best remembered for becoming the youngest-ever male player to win a Grand Slam singles title when he won the French Open in 1989 at the age of 17 .
Simplified: He was the youngest-ever male winner of a Grand Slam singles title . Michael Chang did this when he won the French Open in 1989 at the age of 17 .