England left-back Luke Shaw became the most expensive teenage footballer in history after joining Manchester United from Premier League rivals Southampton in a four-year deal worth a reported 30 million pounds (US$51 million).

That figure surpassed the 25.6 million pound fee United paid Everton for Wayne Rooney in 2004.

"Manchester United is delighted to announce the signing of Luke Shaw from Southampton Football Club," a United statement said.

The 18-year-old, whose contract contains an option for a further year, signed yesterday.

United have announced an estimated 60 million pounds of spending in two days. On Thursday, the club completed its first signing since Louis van Gaal — currently coaching the Netherlands at the World Cup — became manager, when midfielder Ander Herrera joined from Athletic Bilbao for a reported 28.5 million pounds.

"I am thrilled and excited to be joining Manchester United," Shaw said.

Shaw won his third England cap in the goalless draw with Costa Rica that saw England conclude their disappointing World Cup.

Go to Forum >>0 Comment(s)