Freiburg have refused to confirm or deny their interest in landing Manchester United full-back Fabio.
The Bundesliga outfit are reported to be favourites to land the 23-year-old who has barely featured under David Moyes this season.
Freiburg director Klemens Hartenbach has admitted Fabio is a good player, but refused to confirm they were in talks over him.
Hartenbach told kicker-Sportmagazin: "Of course. I am aware of the quality of Manchester United's Fabio.
"Still it's all I would like to say on that transfer speculation!"