Boozer, who didn't play in Saturday's win over the Atlanta Hawks because of a sore knee, is expected to be a game-time decision for Tuesday's matchup against the Phoenix Suns. Thibodeau gave no indication that Deng would miss any action, referring to Deng's situation as a day off.
Both players shot free throws with their teammates after practice concluded.
"He's a little bit better today," Thibodeau said of Boozer. "He didn't practice. We'll see where he is [Tuesday]. He's better today than he was [Sunday]."
Boozer says his knee is feeling better but was noncommittal about playing against the Phoenix Suns on Tuesday night.
"It's all right. It's hanging in there, getting better every day," he said. "We'll see how it feels [Tuesday]. Day to day. I don't think it will be a long-term thing. Hopefully by the end of the week I'll be back out there. If not [Tuesday], then Friday."
Boozer said he wants to take a more precautionary approach with this injury.
"I just don't want it to linger," he said. "I don't want it to be one of them lingering things. We're doing great right now trying to make a move to get up in the East a little bit, and I don't want it to be something that [lingers] for the next three or four weeks."
Thibodeau also gave a quick update on injured point guard Derrick Rose, saying the former MVP is still using one crutch after season-ending knee surgery. Rose tore the medial meniscus in his right knee on Nov. 22.
"He's doing fine," Thibodeau said. "He comes in every day so he's doing good."
Boozer believes Rose is doing OK given the circumstances.
"We see him every day," Boozer said. "He's doing great -- considering what he's going through. A great attitude, strong in his faith and working his butt off in his rehab. Enjoying his family, enjoying his son. We see him every day. He's here right now."
Talking injuries: Thibodeau acknowledged that there is a lot more focus on injuries in the league, but he has always maintained that his team is conditioned for the grind of an NBA season.
"I think there's probably more attention on it now than there's ever been," Thibodeau said. "But injuries have always been part [of the game]. You need good fortune with the health part of it, so it's part of the game. When you talk to the guys that have played from the past, the way they conditioned, they prepared themselves to play a long season, and I think that that's important. Sometimes you have no control over an injury. If it's a broken bone or something like that, or you tear something. But the strains and the pulls, those are things you're concerned with."