Manchester United are considering Chelsea's Andrey Santos as a solution to their midfield and right-back issues.
Casemiro left after his contract expired, and Manuel Ugarte is expected to be sold after suffering a "most serious injury" on World Cup duty.
United's only recognised central midfielder is Kobbie Mainoo.
The club is also monitoring Ederson's situation with Brazil and Mateus Fernandes' move to Tottenham.
Andrey Santos, 22, central or defensive midfielder. He moved to Chelsea from Palmeiras in the summer of 2024. He has played for Brazil U20 and received his first senior national team call‑up in 2025.