"Derrick went through a couple loosening drills, non-contact," Bulls coach Vinny Del Negro said. "He's a little better, but he's still got some soreness, some strength issues. We'll get him some therapy, get him some rest, see how he feels [Monday]. Hopefully he can practice a little bit, but [Monday] will determine that."
Luol Deng (strained calf muscle), Brad Miller (rest) and Joakim Noah (plantar fasciitis) also did not practice. Del Negro said that Noah is starting to run a little more, a positive sign for the Bulls considering Noah hasn't had much physical activity over the past couple of weeks.
"It's difficult," Del Negro said of all the injuries. "But it's out of your hands. You've just got to go with what's thrown at you. The cards that you're dealt, you've got to deal with them. We've had some tough cards and some tough things happen to us. But you've got to battle through it.
"Luckily, nothing's major. Where there's some hope we can get everyone back here in the next four days, three days, five days, a week. I don't know what it is yet. But as soon as we can get everybody together, hopefully we can get on the same page quickly again and get back to playing the way we're capable of."
Nick Friedell covers the Bulls for ESPNChicago.com.