The 18 year-old striker joins the Millers today after talks with boss Steve Evans to seal a switch to the New York Stadium.
Morgan, a left footed product of the Anfield youth academy, has featured three times in the Reds Europa League campaign this season.
He could make his Millers debut in the FA Cup clash at Aldershot on Saturday.
More to follow later.
Source: MillersMAD.
Source: FOOTYMAD