Kevin Garnett recorded a high energy, expletive-filled video to pump up the Boston Celtics before they played the Chicago Bulls in Game 3.

The Celtics struggled in the first two games of the series and have also been dealing with the tragic passing of Isaiah Thomas' sister.

"Everybody was kinda pumped up. I almost felt like he was in the locker room with me again," said Avery Bradley, the only player on Boston's roster who played alongside Garnett.

"It kind of energized us a little bit before the game, and it reminded us of what we're playing for and what the Celtics stand for. ... It's funny, because he was our leader when he was here. He's still part of this Celtics family. For him to go out of his way to send us a message like that, that means a lot to all of us.

"Like I said, it was a reminder of Celtics family. We have to play a certain way because they are watching. There's a respect, the way that we play, and we have to play hard. Every single time we step on the floor, we have to leave everything out there. That has to be our mindset."

A smiling Thomas helped shift the mood in the locker room.

"Isaiah, it was his idea to play it before the game," Bradley said. "And it got us going a little bit."