HARTFORD — Jeff Green keeps passing tests in his comeback from heart surgery. Green, the Celtics’ leading scorer in two exhibition games in Europe this month, showed he can hold his own against NBA opposition in the Celtics’ 98-95 overtime loss to the New York Knicks Saturday night at the XL Center.

Green scored 12 points, 10 during an impressive second quarter, as both teams went with their regulars in the first half. Green also displayed versatility, dunking twice, including a impressive one-hander over Henry Sims, followed by a 3-pointer on the next possession.