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,

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 Boston Celtics head to crypto.com Arena to face the Los Angeles Lakers in a non-conference matchup. The Celtics are 30-13, which puts them in second place in the Eastern Conference. The Lakers are 23-18, which puts them in sixth place in the Western Conference.

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