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Boston will need to be vigilant that old habits vs. banged-up and lesser ball clubs don't make a winnable game into a struggle -- or worse, a loss.

The Celtics had to sweat out an overtime win over the Clippers on Wednesday, but wouldn't have done it without Jaden Springer and his defensive intensity.

The little-used guard got the call when Boston couldn't stop the Clippers' guards. He delivered stout defense and more in an overtime win.

You never know when you’re going to play,” Jayson Tatum said. “Game’s not going the way it’s supposed to or we expect. Joe calls your number to come and shut somebody down and give us a spark off the bench,