December's award will be contested between Jess Park, Fridolina Rolfo and Anna Sandberg, who all impressed in a busy last month of the year for Marc Skinner's side.
The Reds played five games across three competitions, accumulating four points from two Barclays Women's Super League outings, after coming from behind to beat West Ham and draw with Spurs, the latter a thrilling 3-3 draw that we trailed 3-0 with just over 15 minutes to play.
In the UEFA Champions League, United were defeated by eight-time winners OL Lyonnes but finished the league phase in sixth position after securing victory away to Italian champions Juventus on the final matchday, a result which has set up a knockout play-off tie against Atletico Madrid after the ongoing winter break.