Half-Basque, half-British, Xabier is fluent in English, Spanish, French and German, which enables him to work closely with many European and South American players and managers. Working in sport since 2009 and a registered FA intermediary, Xabier has clients at both British and European clubs including Marseille, Valencia, Barcelona, Chelsea and Arsenal. He has also represented rugby players at Saracens, and British, European and World Champion boxers. A lawyer since May 2006, Xabier previously worked at leading law firms in London, Madrid and Paris.
He splits his support half-Athletic-Bilbao and half-Manchester United and regularly travels to watch his favourite teams.