According to The Athletic, Morris will receive a two-year, $20 million contract, with the second year being a player option.
Morris was an unrestricted free agent after coming off a four-year, $20 million contract that many in the NBA considered the best bargain in the league.
In Boston, Morris excelled with his tough play and vocal leadership. He averaged 13.9 points and 6.1 rebounds in 75 games (53 starts) last season, shooting a career-best 44.7% from the field.
The eight-year veteran holds career averages of 11.5 points and 4.6 rebounds per game.