On Tuesday, PopEater reported that Charlie Sheen had checked himself into a rehabilitation facility "as a preventative measure."

Now, the Hollywood Reporter is speculating that the actor's decision to enter rehab may put his job on the hit sitcom 'Two and a Half Men' at risk. Production on 'Men' was put on hold Tuesday following Sheen's announcement. The show is the highest-rated comedy on television, and THR reports that a prolonged absence by its star could put CBS and Sheen in a complicated situation.