The 18-year-old English prodigy arrived at the Vicente Calderon in 2011, and has impressed during his time in Spain, so much so that he is now the subject of interest from the newly crowned Premier League champions.
Sir Alex Ferguson was aware of Kebbie when he came through the youth ranks at Leeds United, but decided against a £1million bid for the right-back, who can also operate in a more advanced midfield position, prompting him to link-up with the Primera Division outfit.
Javier Hernandez could form part of the deal that brings the talented teenager to Old Trafford, with the Mexican international growing frustrated at his limited game time this season.
Chicharito has started just three Premier League games in 2013, and might look to move on in the summer in search of more regular football.
Ferguson will be determined to keep hold of Hernandez, though, as he sets about retaining a lethal Manchester United strike force that also includes Robin van Persie, Wayne Rooney and Danny Welbeck.
But, that is unlikely to stop the club from pressing ahead with plans to try and sign Kebbie in the summer, integrating him into the first-team squad in the next couple of seasons.