The Celtics will give former Atlanta center Al Horford a four-year deal worth $113 million.
Boston Celtics
Reality sets in for Celtics after the draft
Boston has six new players, including a first-round choice whose selection was not popular with fans.
Celtics choose Jaylen Brown with No. 3 pick
Boston decides against a trade and takes Brown, of California, third overall.
Celtics to kick off drama at NBA draft
While the top two picks look set, Boston has a number of options at No. 3.
Boston Celtics prep for draft
With cache of picks, Danny Ainge has plenty of flexibility.
Celtics extend contracts of Ainge, Stevens
Danny Ainge, the team president, hired Brad Stevens as head coach three years ago.
76ers get top pick; Celtics take third
A trade with the Brooklyn Nets gives Boston an early lottery pick.
Big summer on tap for Boston Celtics
Team general manager Danny Ainge embraces an offseason filled with expectations.
Going into Game 5, Celtics and Hawks are familiar foes
The series is tied at 2-2 heading back to Atlanta, where Boston let the Hawks start fast and win twice.
Commentary: A big-time performance by Thomas
Isaiah Thomas writes his name in Celtics lore with a 42-point game to give Boston life against Atlanta.