The Brazilian defender has had a couple of outings at Reserves level recently but has made only one Barclays Premier League appearance this year - as a second-half substitute for Patrice Evra in the 5-0 win at Wolves.
The manager is wary that the 21-year-old needs regular football at this stage of his career and is willing to farm him out to another club in time for the 2012/2013 campaign. After appearing in the Champions League final against Barcelona last season, the full-back has made 15 appearances this term, with many of them coming in Europe or the Carling Cup.
"I hope that Fabio will develop the same way as his twin [Rafael] and, to help him, he will go out on loan next season to give him concentrated first-team experience," the boss wrote in his exclusive column in Sunday's United Review, the official matchday programme.
"I have already talked to him and he understands the value of playing regularly at a higher level than we can give him at the moment."