David de Gea has been integral to Man United 's success the summer . Spanish keeper has been linked with a move to Real Madrid in this season . Phil Neville says keeping De Gea would be best business the club can do . Gareth Bale and De Gea swap ? Pair will likely be Real Madrid team-mates . CLICK HERE for all the latest Manchester United news .
David de Gea has been integral to Man United 's success this season . Spanish keeper has been linked with a move to Real Madrid in the summer . Phil Neville says keeping De Gea would be best business the club can do . Gareth Bale and De Gea swap ? Pair will likely be Real Madrid team-mates . CLICK HERE for all the latest Manchester United news .