Lazar Markovic is set to have a medical later this week as Liverpool close in on their fourth summer signing.
The Reds should secure the 20 million pound deal for the Benfica winger within the next few days, sources have told ESPN FC.
Markovic is due on Merseyside to put the finishing touches to the transfer as manager Brendan Rodgers continues to add to his squad with the departure of Luis Suarez pending.
The 20-year-old, who moved to Portugal from Partizan Belgrade in June 2013, helped Benfica to last season's Europa League final -- although he missed the defeat against Sevilla in Turin because of suspension.
Rodgers has brought in three players so far this summer -- England internationals Rickie Lambert and Adam Lallana from Southampton and Germany Under-21 midfielder Emre Can from Bayer Leverkusen -- and is looking to strengthen further.
A deal worth an initial fee of six million pounds for Lille's Belgian midfielder Divock Origi is in the pipeline.
And Liverpool are also still pursuing moves for Sevilla left-back Alberto Moreno and Southampton centre-back Dejan Lovren, although they are not close to agreeing a fee for either player.
Talks over the proposed 75 million pound sale of Uruguay striker Suarez to Barcelona are continuing, with the sticking point believed to be the structuring of payments rather than the fee itself.
Rodgers is also looking to sell goalkeeper Pepe Reina -- who spent last season on loan in Serie A at Napoli -- but has had no offers so far.