Every report checked here traces back to training-camp paperwork, Devin Carter's signing, Caleb Grill's brief deal, Hank Morgan's release, not trade winds. Boston's payroll leaves little room to chase anything larger than that anyway.

Confidence scores here ran backward from outcome.
Jake Fischer's report on September 11 that Boston was interested in Devin Carter carried a confidence of 75 and proved out: Carter signed September 15. The follow-up report three days later, naming the signing itself, carried a confidence of only 20. Hank Morgan's sign-and-waive carried the same low mark and also happened. Across these five reports, confidence read here tracked how firm the sourcing was, not how likely the outcome turned out to be.
Caleb Grill's camp deal was real and brief.
Paul Garcia's September 14 report of a training camp contract for Grill carried a confidence of 75, the highest mark in this stretch, and it was accurate: Boston signed him. He left the roster within a day. A report can be correct about the signing and silent on how short the stay would be.
None of these reports touch the money that actually constrains Boston.
Every report checked here is about a camp body, not a trade target. Boston's real constraint sits in the payroll: 203.9 million dollars across 17 contracts, above the 200.4 million dollar luxury tax line and within 5.1 million of the 209.0 million dollar first apron. Tatum's 58.5 million and George's 54.1 million alone account for more than half that number. Nothing in the rumor mill this month has tested that ceiling, because nothing reported has required real money.
The one roster opening nobody has reported on is still open.
A second two-way spot was flagged open on September 12 and has gone unaddressed through Shulga's departure, the Gray and McGlothan additions and two preseason games. None of the five reports tracked here ever named a candidate for it. The silence is itself a data point: low-stakes camp moves get sourced quickly, a two-way slot evidently does not.
Did the Celtics actually sign Devin Carter?
Yes. The September 11 report on Boston's interest carried a confidence of 75, and Carter signed on September 15.
Do the Celtics have room under the cap to add someone bigger right now?
Not easily. Boston carries $203.9 million against a $200.4 million luxury tax line, within $5.1 million of the $209.0 million first apron.
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