The wife of actor Charlie Sheen was afraid for her life during a Christmas Day scuffle that escalated into violence, a newly released police report says.

The report also contains information of an alleged assault that happened two months prior to the December incident.

During the unreported incident, Brooke Mueller claimed Sheen threw her to the ground “like a rag doll”.

Last week, Sheen, 44, was sentenced to 30 days rehabilitation after pleading guilty to assault.

The Wall Street star was put on probation for three months and required to go through 36 hours of anger management.

In the new report, Aspen policeman Rock Magnuson says Mueller told him “she was afraid she was going to die" when Sheen supposedly pinned her to the bed and put a knife to her throat.

Evidence given to police shows how an early morning argument about a song Sheen sang to his daughter was the catalyst for the incident that followed.

Sheen denied holding a knife near his wife's throat or attempting to strangle her, saying the argument was “predominantly verbal”.

The report said that he did admit to a “huge fight” in California two months earlier, in which he caused mueller to fall and hit the back of her head on a piece of furniture.

Mueller and Sheen were married in 2008 after his acrimonious divorce from actress Denise Richards.

The actor, who is one of America's highest-paid TV stars. Signed a deal to star in the sitcom Two and a Half Men for another two seasons.