Fábio, 21, has already been told that he will be loaned out next season, in a bid to get regular first-team action whilst Patrice Evra remains in command at Old Trafford.
“There is the possibility that Fabio could go to Benfica,” Cassiano Pereira told O Jogo.
“Alex Ferguson has already talked to me and Fabio about that possibility, and in the next two or three weeks we will make a decision.”
Whilst Fábio is struggling to make an impact, twin brother Rafael has enjoyed a great run of late and has spoken today of his side’s title-hopes.
