Chael Sonnen's next fight will be contested at light heavyweight, and it will be against a familiar foe.

Sonnen, the former middleweight title contender, will meet Forrest Griffin in a 205-pound bout on Dec. 29 in Las Vegas. Sonnen announced the fight on Tuesday's episode of "UFC Tonight" on FUEL TV. The card, which is expected to be UFC 155, will take place in Las Vegas and will air on pay-per-view.

Sonnen and Griffin squared off on Sept. 6, 2003, at IFC: Global Domination in Denver before either were UFC stars. Griffin won the fight via triangle-choke submission

Since then, both fighters have gone on to become two of the biggest stars in the UFC, although in different weight classes. Sonnen (27-12-1) is coming off a middleweight title loss to Anderson Silva last month at UFC 148, while Griffin (19-7) defeated Tito Ortiz on the same card.

Below is footage of Sonnen vs. Griffin 1.