Real Madrid are already exploring the prospect of buying back Sergio Reguilon from Tottenham.
Real Madrid are considering signing a new left-back and could trigger the buy-back clause in Reguilon's Tottenham contract, says AS.
Madrid are concerned over Marcelo's form and could look to buy Reguilon when the clause becomes active next summer.
Manchester United were interested in the defender but were unwilling to agree to the clause that Madrid insisted on.
Instead, the Reds bought Alex Telles from Porto.
