The Celtics built a double-digit lead early and held onto it throughout most of the second half en route to a massive 125-105 win over the Cavaliers.

Here are the takeaways.

That was an impressive, important win

The Celtics have a brutally difficult start to the season, especially for a team with so much change, and they were in real danger of digging themselves a nasty hole after they lost a winnable game against the 76ers in the opener. Losing to the Knicks and Pistons weren’t problematic results in a vacuum, but with two three-games-in-four-nights stretches and contests against championship contenders on the horizon, the Celtics had a chance to go winless or 1-6 in their first seven games.

Wednesday’s game changed that. Now if Boston wins one (or both) of their next two games, the

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