Atletico Madrid goalkeeper David De Gea is a transfer target for Manchester United after Sir Alex Ferguson watched him play in the 1-1 draw at Valencia on Wednesday.
The 19-year-old has been Atletico's first-choice shot-stopper since mid-January and has already started 33 matches for the club.
He starred in last season's Europa League Final when Atletico beat Fulham 2-1.
United are reportedly ready to spend £12m on the teenager as they seek a long-term successor for Edwin van der Sar.
United's current second-choice keeper Tomasz Kuszczak has admitted that he will consider leaving Old Trafford in search of regular first-team football.