Athletic Bilbao have re-signed Iigo Ruiz de Galarreta from Real Mallorca.
The former Athletic youth teamer joins as a free agent.
The midfielder left Athletic for Barcelona before eventually moving onto Mallorca.
Last season, Galaretta managed 30 appearances with Mallorca.
As as a Lion, under Marcelo Bielsa, he made his debut in a 2011/12 Europa League away match against Paris St Germain.