From Boxrec Boxing Encyclopaedia
Per Dan Rafael:
- Perez trained Vazquez only at the tail end of his career, but it was a memorable association. He was in Vazquez's corner for the second, third and fourth fights of his historic series with rival Rafael Marquez. The second (2007) and third (2008) fights, both junior featherweight world championship fights, were named fight of the year, and Perez is given credit for motivating Vazquez late in the third fight, in which he won the 12th round and escaped with a split decision and his 122-pound world title intact.
Perez died June 13, 2013 in Mexico City after a lengthy battle with stomach cancer. He was 58.