The 26-year-old forward was shown a red card shortly after arriving as a planned second-half substitute.
The Reds appealed on the basis the tackle was only worthy of a yellow card and that a three-game ban was clearly excessive.
An independent panel has now upheld the claim of ‘clearly excessive punishment’ and reduced the ban from three games to one.
An FA spokesman said: “An independent Regulatory Commission has upheld a claim of clearly excessive punishment in relation to Liverpool FC Women’s Melissa Lawley...
“…the independent Regulatory Commission has withdrawn the original suspension and applied a one-game ban instead.”