Manchester United are considering a £26m move for Benfica and Sweden star Victor Lindelof, according to Portuguese newspaper A Bola.
Chelsea, Juventus and Paris Saint-Germain have also been linked with the defender, who can play right-back.
He reportedly has a £26m release clause in his Benfica contract and is being lined up as a replacement for Matteo Darmian, who could be heading back to Serie A.
But another report suggests Benfica are now lining up a new deal for Victor Lindelof which will double his release clause to £52m.
Lindelof is under contract at Benfica until 2020.
According to O Jogo, Benfica are hoping to ward off interest from across Europe by rewarding the 22-year-old with a new contract which will up that figure.
The Swede has become an integral member of the first team at Benfica, who are desperate not to lose him on the cheap having plucked him from Vasteras in 2012.