Chelsea are targeting Brighton left-back Marc Cucurella as a successor for Marcos Alonso.
The ex-Barcelona talent is enjoying a successful maiden season in England, after moving from Getafe last year.
The Spaniard has made 33 appearances in the Premier League, and now manager Thomas Tuchel is considering bringing the defender to Stamford Bridge to replace his compatriot.
According to Fichajes, the Blues will make a move for him as a replacement for the former Fiorentina star.
The report states that Atletico Madrid and Barcelona are looking to bring Marcos back to his homeland, and Marc could be his perfect replacement.
Ben Chilwell has spent a lot of the campaign on the sidelines because of a devastating knee injury, and Marc could offer him some competition this year. The 23-year-old star has regularly played in a back five at the Amex, and just like Ben, is comfortable at both ends of the field.
Although Chilwell was brilliant before his injury, there is a chance he is going to take a while to get back up to his best when he returns, so bringing in a reliable backup could be a smart move from the German manager.