Spurs are negotiating with Paris Saint-Germain, who want £22 million for the four-time Ligue 1 title winner.
At that price Lucas is a snip, and would be a superb addition for a Tottenham side who lack a quality wide player.
Liverpool are yet to sign any attacking players after selling Coutinho for £142 million, and Moura is a real bargain.
Here is a look at what Reds fans have been saying about Tottenham closing on the Brazilian...
Promes is a quality signing for Southampton to be honest. As is Lucas Moura to Spurs. This next week with everyone sign players while we sit on our arse doing nothing is going to be unbearable #LFC— Adam Collins (@AdamCollins_6) January 25, 2018
Lucas available for 23 million. Pacy. Xfactor. Another one I don't understand why we are not all over it. #LFC— Mark (@markcollett1) January 25, 2018
25m euros for Lucas Moura is stupidly cheap, that's one player I would love at Liverpool.#LFC— Jack Griffiths (@JGriffiths993) January 25, 2018
Lucas would have given Liverpool a brilliant option out wide and like Coutinho, he is being prised away from a club who are making poor use of his talents.
Despite scoring 18 goals last season, PSG have overlooked him this campaign, failing to start him for a single league game.
If Tottenham can get the deal done it would be great for club and player, and it's no surprise Liverpool fans are unhappy at missing out on a potential bargain.