The 22-year-old player is reportedly emerging as a potential new addition to the Hammers' team this week.
According to recent updates, Arnau is currently negotiating contract terms with West Ham.
As part of the deal, the Hammers are prepared to pay the €14m buyout clause for the defender once personal terms are agreed upon with Arnau and his representatives.
Arnau started his football career as a junior player at Barcelona, and after five years with Girona, he feels ready to take on new challenges in his career.
