Liverpool have completed the capture of Athletic Bilbao defender Mikel San Jose.

The 18-year-old central defender becomes Liverpool's second signing of what has been a quiet pre-season, after the two clubs struck an accord over a €400,000 (£270,000) fee.

San Jose is highly thought of at the Basque outfit and was expected to progress to the club's second team next season, after a series of mature displays in junior sides.

Bilbao concede they were loath to let a player of promise leave, but have wished him well as he sets about a fresh challenge on Merseyside.

Rafa's young army of Reds continues to build.