Arsenal have reportedly joined the race to sign Radja Nainggolan, also a summer target for Premier League rivals Chelsea and Manchester United.
No fresh injury concerns for Jurgen Klopp ahead of Liverpool's biggest fixture of the season so far against AS Roma.
Liverpool will take on Roma in their first UEFA Champions League semifinal appearance in over a decade.
AS Roma produced one of the shocks of the season as they beat Barcelona 3-0 at Stadio Olimpico to send the La Liga leaders crashing out of the UEFA Champions League.
Barcelona goalie Marc-Andre ter Stegen has picked Real Madrid target Alisson Becker among the top five goalkeepers in the world.
Ernesto Valverde has just one player on the sidelines as Barcelona prepare to face AS Roma at Stadio Olimpico on Tuesday for a place in the semi-finals.
Barcelona will aim to seal their progress to the semi-finals when they take on AS Roma at Stadio Olimpico in the quarter-final second leg on Tuesday.
Spanish giants Barcelona are reportedly keeping an eye on 20-year-old AS Roma winger Cengiz Under.
Real Madrid have reportedly set their sights on Edin Dzeko, as they step up their efforts to sign a striker in the summer.
Roma will look to overturn a first leg deficit against Shakhtar Donetsk to make it to the quarterfinals of the Champions League.