Derrick Rose had 21 points and four rebounds in the Chicago Bulls' 109-102 win over the Boston Celtics on Friday.

"My confidence is through the roof, man," Rose said. "I don't need no more confidence, I just need to play. I know how good I am and I know how good I'm going to be. It's just that I just need to be out there playing."

Rose only played 10 minutes in the Bulls' loss on Tuesday to the Denver Nuggets.

The difference for Rose between Tuesday's game and Friday's was simple in Tom Thibodeau's eyes.

"He played," Thibodeau said.

"The thing for Derrick is he's got to keep building," Thibodeau said. "Honestly, I looked at the 10 minutes [in Denver] as a positive. Back-to-back [games], he's out there. I looked at the last two days, practicing and practicing hard, so he plays better. That's how he's going to shake the rust off. So I just want him to keep building. That's what I want him to do. He's got to be out there in order to do that."