The former Sunderland loanee looks set to join rivals Newcastle United.
Manquillo returned to the Premier League by signing for Sunderland on a season-long loan deal.
Sunderland are hoping to bring in a number of players before next week's transfer deadline.
All the latest summer transfers news from Anfield...
Both Hector Bellerin and Javi Manquillo are in Barcelona’s sights, according to Mundo Deportivo.
The Spanish right-back has spoken out about turning down other European sides in order to move to Brendan Rodgers’ men.
We take a look at five players who might want to head out of Anfield this winter.
Spanish left-back Alberto Moreno has been Liverpool's best summer signing so far, according to club legend Jamie Carragher.
Javi Manquillo was in talks to join Liverpool’s League Cup opponents Middlesbrough, before he agreed a switch to Anfield.
All the latest news, views and transfer rumours from Anfield...