And the Celtics needed every bit of his 32 points, 15 assists and 10 rebounds to hold on for dear life in a 95-91 win over the Bulls, providing Boston with arguably its biggest win of the season.
After approximately an hour wait in the dressing room, Kevin Garnett  finally came out and gave a clue as to why Rondo was radio silent.
“He had a bit of a rough day but he played through it,” Garnett said. “He was professional. I thought he… played with that edge.”
Asked to clarify what the rough day meant afterward, Garnett would only smile and joke, spinning the following answer: “I’d love to have that kind of rough day.”
Garnett also spoke at length about a tough film session coach Doc Rivers  gave to the team before the game, less than 48 hours after Rondo put up a very mediocre performance in an 86-74 loss in Toronto Friday night.
Rondo was 2-of-10 from the field, finishing with five points, seven assists and five rebounds and five turnovers in 41 minutes.
Sunday, he posted his ninth career triple-double. Quite the turnaround.
Was Rondo extra motivated?
‘Oh, I don’t know. I’m going to let you guys be that deep,” Rivers said. “I wish I could get in someone’s head that deep. I just think he wanted to win. And I thought we played at a better pace today. You could see it: we were trying to run today. And that’s how we have to play. [If] we didn’t turn the ball over we would’ve had far more points. But I just liked our pace and that’s all we talked about after the game in Toronto and today in our morning walk-through ‘ was enough of the walking. And it was not Rondo, it’s the team. The bigs have to run the floor. [Paul Pierce ] and [Ray Allen ] have to run the floor.”
Then came another clue as to what might have transpired to contribute to Rondo’s “rough day.”
“It does a lot of things,” Rivers said of Rondo running the fast break. “We get early posts from our bigs, we get jump shots from the break, and we get Rondo in the open court. And when you walk, it’s easy to guard.’
Hmmm. The Celtics finished the game with a 33-7 advantage in fast break points, converting all 13 chances.