Manchester United have been discouraged from making a move for Borussia Dortmund teenager Mario Goetze.
The German wunderkind has been in dazzling form for Dortmund as they close in on a first Bundesliga title in nine years, and the 18-year-old is understood to be a target for a number of clubs.
Goetze has frequently been linked with a move to Old Trafford - as well as the Nou Camp and Bernabeu - in recent months and is expected to be the subject of substantial offers in the summer.
However, Dortmund CEO Hans-Joachim Watzke says the club will resist any bids for the 18-year-old midfielder - even if they are in the region of £20 million.
"If Barcelona or Real Madrid bid for a player, we will be fair and talk to the players concerned," Watzke said.
"But when it comes to Goetze, I can say this - he is not for sale.
"We would definitely turn down even a £20m offer. Mario has a contract with us until 2014 and he will remain in Dortmund for at least that long.
"Other clubs can save their offers for Mario Goetze. It's a waste of time."
Goetze committed his future to the Signal Iduna Park by signing a new contract in October, but has revealed his ambition to play for a club with the stature of Manchester United.
Goetze told German publication Kicker: “Who would not dream of playing for a club like Real Madrid, Barcelona or Manchester United?
“However, I have a contract with Borussia Dortmund until 2014 and it is premature to talk about a possible move just months after signing my new agreement.”
The Germany international has been hailed as one of the best talents the country has ever produced by Matthias Sammer and has reportedly been earmarked by United as a potential successor to Old Trafford legend Paul Scholes.