From Jayson Tatum's shot selection to Kemba Walker's usage and Carsen Edwards' outside shooting prowess, Chris Forsberg takes a closer look at some key numbers from the preseason.

Al Horford decided to leave the Celtics regardless of what Kyrie Irving did in free agency last summer.

Kemba Walker, the Boston Celtics' prized offseason acquisition, will return to the Celtics lineup today against the Cleveland Cavaliers, writes A. Sherrod Blakely.

The Celtics reportedly discussed a three-team sign and trade that would have landed them Al Horford and Kemba Walker, but someone kept the deal from happening.

Without Kemba Walker, the Celtics open the game on a 21-2 run and never look back as Jayson Tatum scores 15 points and Marcus Smart 14 in Boston's100-75 rout of the Magic in Orlando in preseason game No. 2.