LaLiga giants Real Madrid and Barcelona are following Liverpool fullback Trent Alexander-Arnold, according to The Sun.
The England international is yet to open talks with the Reds over an extension, as his deal is set to expire next year.
The two Spanish clubs are unlikely to move for the 25-year-old this transfer window, and are set to commence talks with him over a pre-contract in January.
Meanwhile, Liverpool are still hoping to convince Arnold to sign an extension within certain boundaries in regard to his salary.
The right-back is valued at around €70 million, as per Transfermarkt.