Jayson Tatum 19. Complete career nba stats for the boston celtics small forward jayson tatum on espn. Young jayson attended chaminade college preparatory school, where he became one of the country's best high school basketball.

Tatum would jump up one spot in the rankings on a per game basis. He was 19 when he entered the league and was so good that whenever he’d do something awesome, everyone would be like holy shit, he’s only 19 that turned into repetitive jokes like can you believe he’s doing like as a 12 year old and holy shit, he’s still a zygote!.