Roma have failed to agree a fee with Manchester United for Daley Blind and have moved for Sporting Lisbon left back Jonathan Silva.
Blind, the 27-year-old Holland international, is a popular figure at Old Trafford but is currently injured after damaging ankle ligaments in training.
Jose Mourinho, the United manager, had played Blind in every competitive domestic and European cup match this season up until last Friday's FA Cup win over Yeovil Town.
Blind is in the final year of his contract and has been open to a move as he considers his future.