Manchester United will not be signing Alejandro Balde or Jorge Salinas, meaning they are expected to end the window without recruiting a specialised left-back unless there is a dramatic late change.United made a deadline-day check on Balde, 22, who was an unused substitute in Barcelona’s 5-2 win over Rayo Vallecano on Monday, but have ended any pursuit of a loan deal.Michael Carrick’s side have also held talks on Salinas, whose Racing Santander contract includes a €16m release fee. The 19-year-old was of interest to Atletico Madrid too, but his club expect him to stay in Santander.United have been considering left-back options, with Luke Shaw the only senior player in that position. Dorgu is seen as a left winger by head coach Carrick, while Harry Amass is 19 years old.Noussair Mazraoui and Diogo Dalot can switch across from right-back, and these are set to be the options available to Carrick.Amass had been in line to leave United, either permanently initially, or on loan in recent days, with approaches from several clubs, but no deal has been concluded. United ideally wanted a replacement in to allow Amass out. The former Watford man is expected to feature for United Under-21s and provide back-up for Shaw.