Career
He played as a flanker. Díaz played for Castres Olympique, in France, from 1986/87 to 2001/02, winning the French Championship in 1992/93, being a runners-up in 1993/94, and also the Cup of France, in 1992/93. He had 10 caps for Spain, from 1997 to 1999, scoring 1 try, 5 points in aggregate.
He was selected for the 1999 Rugby World Cup, playing in all the three games.
