Real Madrid are aiming to complete the signing of Trent Alexander-Arnold before the start of the Club World Cup.
The England defender has confirmed he will leave Liverpool when his contract expires later this summer and the 26-year-old is expected to join the Spanish club as a free agent.
Alexander-Arnold's contract with Liverpool expires on June 30 but the Club World Cup begins 16 days earlier.
BBC Sport understands Real have approached Liverpool with a view to negotiating a deal to release Alexander-Arnold in time for the full-back to be part of their plans for the Fifa-organised tournament in the United States.