Sources close to the fight confirmed the fighters had agreed to the matchup and were expected to sign bout agreements shortly.
The event has yet to be announced by the UFC, but is expected to take place Aug. 29 at the Rose Quarter in Portland, Ore.
The fight is Leben's first since being suspended by the UFC after his post-UFC 89 drug test revealed the presence of Stanozolol. Leben lost to
During the layoff, Leben turned his attention to opening a training center, Ultimate Fight School, which opened recently in Honolulu.
In 12 UFC appearances, the Ultimate Fighter original has drawn an 8-4 record, with an overall professional record of 18-5.
Rosholt, a holdover from the now-defunct WEC middleweight division, is a two-time Division I wrestling champ for Oklahoma State University. A member of Team Takedown, he made the segue into MMA in July of 2007. His undefeated streak was recently broken by