Middlesbrough are lining up a move for Cardiff City defender Fabio, sources close to the club have told ESPN FC.
Boro boss Aitor Karanka has been looking to bolster his side's defensive options and he has targeted a move for versatile full-back Fabio.
The former Manchester United defender is entering the final year of his contract at Cardiff and the Championship club are prepared to cash-in on him while they still can.
The 26-year-old moved to England from Fluminense in February 2007 when United signed both Fabio and his twin brother Rafael. He joined Cardiff in January 2014, but could not help the club avoid relegation from the Premier League.
Fabio came to Karanka's attention last season when he scored a superb goal against his side in the Championship and he has been keeping tabs on his progress ever since.