The Boston Celtics have won 10 of their last 12 games with six of the seven most recent victims being the Magic , Pistons , Cavaliers, Knicks , Lakers (albeit without Luka Dončić and LeBron James ), and Raptors , whom Boston defeated on Sunday, 121-113, to extend its longest winning streak of the season to five.

Without going back through everyone's schedule, that may be the best stretch of wins for any team this season. Those six teams listed have a combined record of 94-49, and the Celtics dispatched of them by almost 10 points per game on average. The Celtics weren't supposed to be this good. But here they are at 15-9 -- 15-6 since an 0-3 start -- with the league's fifth-best net rating and No. 2 offense.

How are they doing this without Jayson Tatum , one of the best o

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