In an in-depth interview with the club’s official magazine, on sale today (Wednesday 9 October), the twins also discuss their United careers so far, five years on from their debuts, as well as their younger days in Brazil.
Subscribe to Inside United at www.manutd.com/magazine or pick up a copy at Old Trafford.
November 2013 issue highlights:
– Exclusive double interview with Rafael and Fabio
– Record-breaker Ryan Giggs' best 11 moments in the Champions League
– The story of Reds master-blaster Mark Hughes' brilliant United career
– Ron Atkinson on echoes of his Bryan Robson signing in Marouane Fellaini
– How Wayne Rooney joined Charlton, Law and Rowley in United's 200 club
Subscribe to Inside United at www.manutd.com/magazine