With Andrew Bynum's return date uncertain and Tyler Zeller recovering from an appendectomy, the Cleveland Cavaliers have an important position to fill at backup center.

Henry Sims, Kenny Kadji and DeSagna Diop are vying for the job.

"I feel like I'll do whatever's in my power to make it on this team," Sims said Sunday. "Coach (Mike Brown) wants defense, I'm going to bring him defense. I'm going to do everything in my power."