Tottenham's acting manager David Pleat believes the club have captured one of Britain's brightest young stars in the shape of £7m striker Jermain Defoe.
Spurs captured Defoe with minutes of Monday's transfer deadline remaining - with Bobby Zamora moving to Upton Park.
Pleat said: "I can't think of a British striker at his age who has achieved as much in such a short space of time.
"His goal record for a 21-year-old is quite exceptional. I hope he will have a fine career at Tottenham."
Pleat added: "This keeps our policy of wanting to develop a young team with prospects to really improve and get into Europe."
Spurs have paid an initial £6m for Defoe, which will rise to £7m based on "specific performance criteria".
They will be gaining a player who has scored 15 goals this season but also picked up three red cards.
Zamora, who failed to settle at Spurs following his £1.5m summer move, has struggled to make the grade in the Premiership, having failed to score a top-flight goal this season in 16 appearances.
The 23-year-old's only goal came in the Carling Cup as he struggled to recapture his form with Brighton which saw him score 70 in 119 league games.