He amassed La Liga totals of 94 matches and 19 goals over six seasons, appearing in the competition for Real Madrid, Espanyol, Valladolid and Racing de Santander.

[1] Never a part of the club's plans, he went on to serve four consecutive loans: Extremadura, Espanyol, Real Valladolid[2] and Levante; however, after appearing against Rosenborg in the 1999–2000 UEFA Champions League, he earned a winner's medal.

[4] Aganzo moved to Alavés for 2007–08,[5] contributing eleven goals to help the Basques to narrowly avoid relegation to Segunda División.

[11][12] Aganzo represented Spain at the 1999 FIFA World Youth Championship, playing three games as the nation emerged victorious in Nigeria.

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