Defender who is famous for his international club career, including for Paris Saint-Germain F.C. during their Ligue 1 championship campaign of 2017-2018. He garnered massive fame between 2012-2017 for the La Liga club Real Sociedad before signing with Athletic Bilbao in 2018.
He began his youth soccer club career in 2000 with Antiguoko. He later trained with Tottenham Hotspur's youth academy.
He contributed to Paris Saint-Germain F.C.'s Coupe de la Ligue and Coupe de France tournaments in 2017-2018. He has played for Basque Country's national team.
His father is of Algerian descent. His mother is of Spanish descent.
He and Ander Iturraspe have played as teammates for Athletic Bilbao.