bundesliga.com outlines the careers and key facts of the main protagonists set to face off on July 27, 2013 in Dortmund.
He arrived at the end of a prolonged transfer saga with FC Bayern Munich triggering his release clause from Athletic Bilbao last summer, and despite paying out a league-record fee, there have never been any regrets. Bayern's chief executive officer Karl-Heinz Rummenigge spoke of his "delight" at having finally secured the services of the Spanish international midfielder, and Bayern's fans took much delight in seeing him in action during his sensational debut season in German football.
After turning out for various local youth teams, Martinez joined the youth set-up at C.A. Osasuna in 2005. Despite never appearing in the first team, his stock rose high enough to attract an offer from Athetic Bilbao just a year later, and it was with the leading Basque outfit that he really made a name for himself. After making his senior bow in 2006, he went on to establish himself as the heartbeat of the team while still a teenager, making 35 appearances in his first full campaign. Blessed with incredible stamina, superb tackling ability and an imposing physique, he soon matured into one of Spain's leading defensive midfielders.
Martinez was a Spain squad member in the 2010 World Cup and Euro 2012 triumphs and underlined, if not emphasised his quality and mental resilience as a practical ever-present for Bayern during their historic treble-winning season.