Sevilla are monitoring the situation of Alberto Moreno as the Liverpool left-back's contract runs down, sources have told ESPN FC.
Sevilla would be interested in bringing Moreno back to the Ramon Sanchez Pizjuan Stadium after he left in 2014 to join Liverpool in a £12 million deal.
Moreno's contract expires at the end of the season and talks between Liverpool and the player's camp have yet to restart following discussions at the end of last season.
The 26-year-old would be open to a return to Spain, a source has said, with Sevilla among a number of La Liga clubs interested.
Reports in Spain recently claimed that Liverpool had offered Sevilla the opportunity to sign Moreno in January, although a source close to the Merseyside club said the Spaniard has not been offered to any clubs.
Moreno, who is permitted to hold discussions with teams outside England from January, is firmly behind Andrew Robertson in the left-back pecking order at Liverpool.
He has made just three appearances this season and his start in last month's win over Cardiff City was his first in the Premier League since April.
ESPN FC's Eduardo Fernandez-Abascal contributed to this report.