Liverpool today confirmed they have agreed a permanent deal with Athletic Bilbao for Mikel San Jose.
The 20-year-old will complete the transfer back to Spain when his loan with the La Liga club expires in June.
San Jose originally arrived at Anfield from Bilbao in the summer of 2007.
The Spanish U21 international was a regular in the Reserves and figured for the first team during last summer's pre-season preparations.
However, he returned to San Mames on loan last August in a bid to gain more senior experience.
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