Brad Stevens made his first move as the Celtics president of basketball operations on Friday, reuniting with a player he coached during his early days in Boston.
Walker hasn't shared his reaction to the deal yet, but Horford appears pretty excited about returning to Boston with "unfinished business."
Horford played for the Celtics from 2016-19 before signing with the Philadelphia 76ers, a move that didn't work out. He was eventually traded to the Thunder, which also didn't work out.
The 35-year-old averaged 13.5 points, seven rebounds and 4.6 assists per game while shooting 49.8% from the field and 38.2% from deep during his Celtics career, and Stevens is hoping he'll be able to replicate those numbers in his second stint with the franchise.