Joe Guzzardi has written about Sanchez, who is U.S.-born and a native speaker of English. On one side anyway, it was his great-grandparents who immigrated.
What does Sanchez mean by calling himself 100% Mexican ?
At the press conference (90% of which was in Spanish) Sanchez said that
"I need to learn more Spanish because I want to talk with the Mexican fans that have supported me much. I am 100% Mexican".This is the same guy who said that growing up he "never thought much about being Mexican." But he sure thinks about it now that he`s quite successful.
So it sounds like some sort of awakening.