Soldado has been linked with a move to the Premier League for much of the summer, with Spurs thought to be the frontrunners to sign him amid earlier interest from Manchester City and Chelsea.
Tottenham have had one bid, in the region of £18million, rejected for the Spain international and are being tipped to increase it in the hope they can lure the Valencia man to White Hart Lane.
However, the Spanish club apparently want £25million for him and that could price Tottenham out of a deal - with the Reds ready to splash that amount to secure the 28-year-old's services.
Some will see an offer for Soldado - if it is forthcoming - as a real sign the club are set to lose Luis Suarez this summer but boss Brendan Rodgers has money to spend without the need to cash in on the Uruguayan striker and would have splashed the same amount on Shakhtar Donetsk's attacking playmaker Henrikh Miktaryhan last month had he not opted to join Borussia Dortmund instead.
Rodgers has also spoken about adding at least two more players, with at least one being a forward, to his first-team squad before the season begins and the reported £22.5m spent on Iago Aspas, Simon Mignolet and Luis Alberto already in the close-season has largely been balanced by the departures of Andy Carroll and Jonjo Shelvey to West Ham and Swansea respectively.