The Celtics are finally at the most important part of their season as they open the playoffs Sunday at TD Garden. The defending champions weren’t perfect over the course of a long 82-game regular ...

Why the $6.1 billion sale of the Boston Celtics proves major teams are now fully realized mega-brands with industry-changing heft ...

How big of a risk is the Boston Celtics changing owners to the team winning another title soon? The Celtics have been among ...