Question: are xabi alonso and marcos alonso brothers?
Answer: He's Marcos Alonso, the Left Wingback of Chelsea who has been through the ranks of Real Madrid academy. He is the Grandson of Marquitos, a late Real Madrid legend back in the 1960s. He was born in Madrid but Xabi Alonso was born in the Basque country of Spain and Came through the ranks of Real Sociedad academy.