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THE COURTSIDE DATA DESK / 2026–27

Celtics’ Devin Carter diagnosed with mono after two-way conversion

A quick read on what changed — and what it means for the rotation.

Image from the source report · Yahoo Sports

What happened

The Celtics officially converted Devin Carter to a two-way contract, and multiple reports say he has mononucleosis.

He has already missed time since the preseason opener, and there is no firm return date; Gary Washburn reported he could be out for a few more weeks.

LINEUP CONTEXT

Carter’s absence delays any depth contribution from Boston’s third two-way slot. The Celtics’ guard group is still healthy, so the short-term rotation picture may not change much.

Automated brief based on the linked report. Lineup context is analysis; official starting-five labels come separately from our game data provider.

NBA-Lineups.com is an independent basketball resource. Game times, scores and starting lineups are updated automatically. News briefs link to their original reporting. Data may be delayed or incomplete.

Sources · Methodology

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