Tatum putting in work against other players in off season is better than just shooting jumpers with a coach. Plus it was on a trip to support other players.
Much like Brown going out with his new reps and hanging with Irving it's all good. These guys need to have lives.
I believe Tatum worked out with Giannis once and Giannis usually only works out with teammates so Tatum is super k with everyone. Good to see a Celtic getting real support league wide.