Chelsea full-back Marc Cucurella was United&aposs preferred target but they have turned their attention to Sergio Reguilon over issues with a possible deal for Cucurella.
Cucurella started in Chelsea&aposs 2-1 League Cup second round win over AFC Wimbledon on Wednesday night and, as United are insistent on having the option to terminate a loan in January, he would not be able to be transferred to a third club in a season.
The Manchester Evening News revealed Reguilon, 26, was on United&aposs left-back shortlist that they compiled last week, although there was concern over his salary demands.
Also read: Loan offer for Amrabat raises a familiar issue for United
United have moved for a left-back after Luke Shaw sustained a muscular injury that is expected to keep him out for at least two months. Fellow left-back Tyrell Malacia reported for pre-season injured and is not due back until mid-September.
Fenerbahce goalkeeper Altay Bayindir&aposs transfer is expected to be confirmed early today. The 25-year-old is joining in a 5million (4.28m) deal.
Sofyan Amrabat of Fiorentina is Ten Hag&aposs ideal pick to bolster a midfield depleted by injuries to Kobbie Mainoo and new signing Mason Mount. Senior United figures have not been wholly convinced by Amrabat throughout the summer but Ten Hag is pushing to be reunited with a player he managed at Utrecht in the mid-2010s.
Amrabat, 27, is out of contract at Fiorentina at the end of the season and attempted to engineer a move in January after his excellent performances for Morocco during the World Cup.
United are unlikely to negotiate permanent fees for Reguilon or Amrabat as they are compromised by the Premier League&aposs profitability and sustainability rules.
Although United&aposs market activity slowed in August, they have invested 183million in four signings, taking the spending on Ten Hag&aposs watch up to 410m.
United are aiming to offset their expenditure with outgoings before the window closes. Forgotten duo Eric Baily and Donny van de Beek are free to leave.
Bailly has attracted interest from clubs in Saudi Arabia and the Saudi Pro League transfer window is open until September 7, according to the league&aposs website. Fifa lists the window open until September 20.