Arsenal are wrapping up a deal for Benfica left back Nuno Tavares after agreeing a £6.5m fee.
Gunners boss Mikel Arteta sees the 21-year-old as ideal back-up for Kieran Tierney, says the Mirror.
The Gunners pursued him after considering Ryan Bertrand, but the former England international, who has left Southampton after seeing his contract expire, looks set to join Leicester on a free transfer.
Signing a left-back has been a priority for Arteta and sporting director Edu ever since the January transfer window, when they allowed Sead Kolasinac to rejoin Schalke on loan - while also sending Ainsley Maitland-Niles, to West Brom.
Those moves left the club light late in the campaign, meaning that when Tierney suffered an injury at the beginning of April, they were left without a recognised left-back in some games; Cedric Soares and Granit Xhaka were among those who deputised.
