The Boston Celtics experienced how quickly the momentum can shift in the NBA Playoffs. After beating the New York Knicks ...

The Celtics blew a 14-point lead, then lost their best player to injury in a Game 4 loss to the Knicks that pushed Boston to ...

The worst possible outcome happened for the Boston Celtics on Monday night. And it’s not the Celtics heading back to TD Garden — where the Knicks won Games 1 and 2 — facing a 3-1 deficit. It’s that ...

The Celtics will need a lot more from Kristaps Porzingis to keep their season alive after Jayson Tatum's injury in Game 4.

Sometimes it makes sense, and this time, it didn’t make sense. … It’s weird, weird, weird, honestly. Super weird.” ...