But Connors might be best remembered for reaching the semifinals in 1991 at the age of 39 when he was a crowd favorite .
He won all three Grand Slam events he entered in 1974 , when he won his first U.S. Open .
Connors might be best remembered for reaching the semifinals in 1991 at the age of 39 when he was a crowd favorite .
He won all three Grand Slam events he entered in 1974 , when he won his first U.S. Open .