Liverpool have signed Bulgaria under-21 international goalkeeper Nikolay Mihaylov from Bulgarian Champions Levski Sofia.
Mihaylov made his senior international debut against Scotland
Mihaylov, who is the son of Bulgarian Football Union president Borislav Mihaylov, has signed a three-year deal with an option for a further two years.
"I have no words," Mihaylov told Bulgarian sports Web site www.sportal.bg.
"This is the greatest moment of my life," added the 18-year-old keeper.
Mihaylov, who turns 19 on Thursday, made his senior international debut in a 5-1 defeat by Scotland in the Kirin Cup in Japan in May 2006.
He was in the Levski squad in the Champions League group stages last year.