Jason McIntyre of The Big Lead reports:

Will Ferrell will guest-host the 6 pm SportsCenter on Thursday, December 5th, two sources exclusively tell The Big Lead. The sources who spoke on condition of anonymity because the appearance has not been announced, also say that there will be some sort of Ron Burgundy element to telecast.

ESPN spokesman Josh Krulewitz declined comment.

Ferrell will be SportsCenter’s third celebrity guest-host in five weeks. Actor Ken Jeong andNASCAR driver Jimmie Johnson both delivered big ratings, but Ferrell, an A-list actor who just so happens to have a movie coming out soon (Anchorman 2, December 20th!) is a significantly bigger star.

Probably the best cross-promotion for a movie of all-time.