The Boston Celtics are hiring Sam Cassell as an assistant coach on Joe Mazzulla's staff, sources told ESPN's Adrian Wojnarowski on Sunday.
Celtics president Brad Stevens announced last week, after the team lost to the Miami Heat in seven games in the Eastern Conference finals, that Mazzulla would return as coach but said he wanted to hire a veteran assistant to his staff.
Cassell, 53, will fill the spot vacated when Damon Stoudamire left to become Georgia Tech's coach in March. Three other Celtics assistant coaches -- Ben Sullivan, Aaron Miles and Mike Moser -- are reportedly leaving to rejoin former Celtics coach Ime Udoka, who was named head coach of the Houston Rockets in April.