Injury report: Brewer out Thursday

DEERFIELD, Ill. -- Like many other teams around the league, the Bulls are dealing with some bumps and bruises as the preseason schedule gets rolling. Let's take a look at a few injuries they're dealing with.

Ronnie Brewer: (sore right hamstring) Brewer is not going to play Thursday in Dallas and may not play Friday at home against Washington either.

Carlos Boozer: (broken right pinky) He was at practice stretching with his teammates and shooting left handed on Wednesday. He reiterated that his surgery was a success, but will not travel with the team to Dallas.

Taj Gibson: (back) Gibson's back started to spasm during Tuesday's game against Milwaukee, but he was at practice on Wednesday and expects to play against the Mavs.

Derrick Rose: (finger) Rose was wearing a small black wrap around the ring and pinky fingers on his right hand during practice on Wednesday. He appeared to be fine and will play Thursday.

Bulls waive Richard: Chris Richard was released on Wednesday morning which leaves the Bulls with 16 players on the current roster.

"Right now, we’re trying to pare down," Thibodeau said after practice. "Because we have so many new guys, we want to get more reps for the guys who are here. He did a fine job and was professional. We wish him well."

Thibs commitment to defense: Thibodeau mentioned several times after Tuesday night's game that he wasn't exactly pleased with his team's effort on the defensive end of the floor. When asked what he thought the team had to focus on to improve, the new coach responded this way:

"Work, commitment, doing it day after day. We have some parts of it down OK. We have to become more of a multiple effort team and sustain it for 48 minutes. It’s a one-point game with a couple minutes to go. We have to close out better than we did. We don’t want anybody taking any plays off. When you’re out there, you’re expected to play both ends."