Veteran center Al Horford is expected to test free agency, an NBA insider tells Sports Illustrated—putting the Boston Celtics at risk of losing a key veteran presence. The revelation comes as Jayson Tatum addresses the team’s trajectory and head coach Joe Mazzulla faces fresh criticism.
Celtics Notes: Al Horford Prediction, Jayson Tatum Talks, Joe Mazzulla Called Out

Key Takeaways:
- NBA insider says Al Horford is “set to lose” Boston in free agency.
- Jayson Tatum has engaged in talks about the Celtics’ direction.
- Coach Joe Mazzulla has been publicly called out, heightening scrutiny.
- The news lands in mid-August, just weeks before training camp.
- Report originates from Sports Illustrated journalist Nelson Espinal.
Al Horford’s Uncertain Future
An NBA insider told Sports Illustrated that “the Boston Celtics are set to lose center Al Horford in free agency,” signaling that the 39-year-old big man may have played his final game in green. For a roster long defined by Horford’s versatility and locker-room steadiness, his potential departure underscores the stakes of an already pivotal off-season.
Tatum Speaks Up
The same report notes “Jayson Tatum talks,” suggesting the franchise cornerstone has weighed in on the team’s next chapter. Though details of Tatum’s comments remain undisclosed, any public remarks from the All-NBA forward invariably shape Boston’s narrative—and hint at the pressures of maintaining a contender around him.
Mazzulla Under the Microscope
Meanwhile, head coach Joe Mazzulla has been “called out,” a phrase that captures the mounting scrutiny he faces entering his third season on the sidelines. The timing of this criticism, coupled with Horford’s uncertain status, raises questions about how the coaching staff will navigate potential roster changes.
A Summer on the Brink
With training camp approaching and free agency decisions looming, Boston’s front office suddenly confronts a complicated chessboard: replace a respected veteran, keep its superstar engaged, and reassure a coach under fire. The report’s August 19 publication date leaves little time for the Celtics to craft answers—yet ample opportunity for the rumor mill to keep spinning.