Isaiah Thomas scored 16 of his 22 points in the third quarter, when the Boston Celtics turned a three-point deficit into a 16-point lead before coasting to their 14th straight home victory, 116-96 over the Memphis Grizzlies on Wednesday night.

The Celtics have not lost in Boston in more than two months, a span that has seen them climb from ninth in the East into the conference’s No. 3 seed.

Two nights after surprising East-leading Cleveland — despite being without four starters — Memphis sustained a collapse that was exacerbated by the loss of guard Mario Chalmers in the third quarter to what the team called a right foot injury. Chalmers did not appear to sustain any contact before pulling up and then needing assistance off the court, unable to put any weight on his leg.

JaMychal Green had 17 points and 13 rebounds for the Grizzlies.

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