Eddie Cibrian sues Life & Style for $1 million for defamation

Eddie Cibrian is reportedly suing "Life & Style" for $1 million, for allegedly defaming him and his relationship with singer LeAnn Rimes. 

You know, the woman he denied having an affair.

According to the suit obtained by TMZ -- who else -- Cibrian claims the mag printed a story about him having an affair with another actress.

The title of the story? "Eddie Cibrian is cheating on LeAnn Already," not to put too fine a point on it.