The injury bug just keeps pestering the Bucks.

Andrew Bogut did not practice with the Bucks Monday, still feeling sore after an injury sustained in the final moments of an 83-75 loss Saturday night against Chicago.

He left the facility around noon, as his teammates worked out on the court. Head coach Scott Skiles said that Bogut was evaluated Monday morning but would undergo a second evaluation later in the afternoon.

"He asked to come out (Saturday) so I took him out," Skiles said. "They were working on him when we came in after the game and told me he was sore on his left side."

Bogut has missed nine games this season for various reasons, including migraines and back spasms, and has spent much of the year trying to work around the lingering effects of a nasty elbow injury suffered last April 3.

In 49 of 58 games this year, Bogut is averaging 12.6 points and 11.5 rebounds in 35.8 minutes. On first glance, those numbers don't look much different from his career numbers (12.7 / 9.4 / 32:42) but when you look at his field goal and free throw percentages, the problem becomes a little more clear.

Bogut is shooting at a 48 percent clip this season, compared to 52.4 percent for his career. From the free throw line, he's converted 41.6 percent of attempts in 2010-2011, but approaches 60 percent overall.

He's said he plans to have arthroscopic surgery on the elbow during the off-season.

Losing Bogut for an extended period of time would be tough for the struggling Bucks (22-36) who will likely be without Ilyasova tomorrow night when the Pistons come to town.

Ilyasova sat out Saturday night as the Bucks lost to Chicago after suffering a concussion Friday in practice. As of Monday, he was listed as "out" on the team injury report.

Not having either Bogut or Ilyasova Tuesday could mean more minutes for Larry Sanders, the Bucks' first-round draft pick last summer who just recently returned from a short stint in the D-League.

He's appeared in 37 games so far, playing an average of 14 minutes, as he tries to get acclimated to the professional game. Known as a high-energy player while playing college ball at Virginia Commonwealth, Skiles needs a little more from his rookie before increasing his minutes.

"He'll get his chances," Skiles said.

More than anything, Skiles would like to see Sanders get more involved in plays.

"He'll make an initial effort, sometimes it's OK, but he has to stay in the play," Skiles said. "At this level, guys are going to play the possession out to the very end. It's just not a habit that he has yet, but he's much better at it."

That was one of the reasons the Bucks sent Sanders down to the D-League to get some work in last weekend. The plan was to keep him down for about a week, but the injury bug made it a short trip.

In two games with Ft. Wayne, Sanders averaged 10.5 points and 10 rebounds but got some valuable experience in game situations --something that's difficult for a rookie to do in the National Basketball Association.

"It's an adjustment," Sanders said. "There's a lot of stuff going on.

"It was good to play a lot of minutes. Just being able to go out there and run and be able to make some mistakes without being so tense about it was good. I could just go out there and play basketball.

"There's really nothing like playing in an actual game. You can practice all you want, but actually playing in the game is what you need. Going down there and doing that was really good for me."

Sanders saw significant action Saturday against the Bulls and struggled at times while matched up against Joakim Noah, who finished with 17 rebounds -- nine on the offensive end.

"He overwhelmed all of us (so) it wasn't just Larry," Skiles said. "That's a good guy to be measuring himself against because he plays hard every minute he's on the court and if you're not ready for it he's going to overwhelm you. It's good experience for Larry."