LOCKED ON CELTICS: Sept. 28- Horford on playing the 5 & Tatum

Day 2 of training camp featured a lot of Al Horford talking about his own position (playing the 4 or the 5) and his new rookie teammate Jayson Tatum. RedsArmy.com's John Karalis talks about that and the re-heated debate over Jaylen Brown vs. Marcus Smart starting in the backcourt.

Enjoy the show! #Celtics #RaininJs

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