(HD Video) Luka Modrić & Gareth Bale vs Real Madrid
The Spanish side have also earmarked his United team-mate Eric Bailly as a potential replacement for Jules Kounde, who left for Barcelona last week.
Telles, 29, is surplus to requirements under Ten Hag, who has bought Tyrell Malacia to increase competition for Luke Shaw while Lisandro Martinez can also cover that position.
Brazilian full-back Telles, who joined United from Porto for £15.8million in 2020, made 26 appearances last season.
He has figured in pre-season friendlies and was among the goalscorers in last week’s behind closed doors friendly win over Wrexham.