Question: What is the birthdate of this American former professional basketball player, who played for the New Jersey Nets and asked to be called Jay on joining the Bulls in 2002?
Sentence (from "Jay Williams (basketball)"): Although he had been known as Jason, he asked to be called Jay on joining the Bulls in 2002, to avoid confusion with two other players in the NBA at the time, Jason Williams and Jayson Williams.
Relevant evidence: Yes