Current Contract:
Contract renewable through 2012.

Became a Cardinal:
Signed as a non-drafted free agent on March 5, 2006.

2006 Season:
Diaz appeared in 17 games (15 starts) for the VSL Cardinals, going 2-8 with a 5.02 ERA, allowing 74 hits, striking out 56 and walking 37 in 66.1 innings. His 15 starts were tied for most in the VSL.