Right now Tatum son is 6 and Tatum is 26, so Tatum would have to play at least 13 more seasons. It sounds crazy but the thought of Bronny playing with Lebron in 2010 (Lebron was 26, Bronny was 6) would have been a crazy idea back then. Out of all NBA stars, I think Tatum has the best chance to play with his son after Lebron
It’s as close to zero as it could be, but it technically isn’t absolutely zero.
Jayson Tatum would have to play in the NBA until he’s 39, and Deuce would have to be NBA ready at 19, which is certainly improbable, but not necessarily impossible.
Zero
Also some team would have to be crazy desperate to want to keep a 39 year old Jayson Tatum content enough to draft his son. The whole situation is just unlikely to ever happen again.
Or that Deuce is a very good prospect that it justifies a draft selection and Jayson is a 39 year old on a team that is not very good, and Jayson stays in the league and doesn’t just outright retire
Overall, I’m more likely to own the Boston Celtics.