David Aganzo

Born in Madrid, Aganzo was a product of Real Madrid's youth system, and made his debut with the first team on 20 February 2000 in a 1–1 draw away to Valencia. Never a part of the club's plans, he went on to serve four consecutive loans: Extremadura, Espanyol, Real Valladolid and Levante; however, after appearing against Rosenborg in the 1999–2000 UEFA Champions League, he earned a winner's medal. In the 2004–05 season, Aganzo signed for Racing de Santander in La Liga, where he was rarely used except in his first year. In January 2006, he had a small loan stint at Beitar Jerusalem. Aganzo moved to Alavés for 2007–08, contributing eleven goals to help the Basques to narrowly avoid relegation to Segunda División. He was released at the end of the campaign, joining another side in that tier, Rayo Vallecano who had just promoted, on a free transfer. He scored a career-best 12 goals in his first year as the team easily retained their status, being regularly used over three years and leaving the Campo de Fútbol de Vallecas in July 2011. In early September 2012, Aganzo signed with Aris Thessaloniki of the Super League Greece from Hércules, on a one-year contract. He returned to his country two years later, joining second-tier Lugo. Aganzo retired at the age of 34. In November 2017, he replaced Luis Rubiales at the helm of the Association of Spanish Footballers.

Aganzo represented Spain at the 1999 FIFA World Youth Championship, playing three games as the nation won the tournament in Nigeria.

Aganzo's wife, Brazilian footballer Milene Domingues, played in Spain from 2002 to 2009 (including two years in the ladies' team of Rayo Vallecano).

Real Madrid

UEFA Champions League: 1999–2000 Levante

Segunda División: 2003–04 Spain U20

FIFA World Youth Championship: 1999