Based on Football analyst views saying that Brazilian international has been an excellent player for the Reds with 94 goals and 81 assists from 311 appearances.
Although there are uncertainties over his future amid the lack of progress in contract talks over the past few months.
With the 30-year-old has entering his final 18 months of his deal, and there is a contract stand-off amid his wage demands from the club for now.
It was also noted that the Reds are currently prioritizing the renewal of Mohamed Salah and they are open to offloading him in the summer if they feel his too expensive for them.
According to El Nacional, the Blaugrana are one of his long-term admirers, and could lodge a bid of €20m to sign him.
It is unclear whether the Reds will accept a such a low-ball figure as the striker is attracting plenty of transfer interest.
Juventus and Bayern Munich have also been linked with the former Hoffenheim forward alongside AC Milan.
All three clubs could be prepared to pay a higher fee for his services provided he is willing to come to their club.
