Sports Lessons from an NBA dad to his son, Memphis Grizzlies star Jaren Jackson Jr. June 20, 2021 Analis Bailey, USA TODAY Comments Off on Lessons from an NBA dad to his son, Memphis Grizzlies star Jaren Jackson Jr. With 12 seasons in the NBA and a championship ring, Jaren Jackson Sr. says it's a matter of time for Jackson Jr. to get his ring with the Grizzlies.