I haven't said it in a while, but I've always considered Mexico to be the college football equivalent of Auburn. They're not considered a world power (or, if you will, a historical national power) by most of the football world, but the people in their region know two things:
1) They're much better than a lot of people give them credit for, and you sleep on them at your own risk.
2) If they ain't currently cheatin', they must be asleep or something.
News broke today that 6 players on Mexico's Gold Cup team, including their starting goalkeeper Guillermo Ochoa, have been suspended for testing positive for Clenbuterol. Clenbuterol, for those who haven't heard of it before, is a performance-enhancing drug used by other "misunderstood and falsely accused" people in the totally-squeaky-clean sports of baseball and cycling.
Ochoa is Mexico's regular starting goalkeeper and Francisco Rodriguez is a regular starter on defense, so this is definitely a hit for the Mexicans. I wouldn't say this automatically makes the USA the favorite, though, because as long as Mexico has Chicharito, they've still got to be at least the co-favorite.
Really, what this does is confirm what all of CONCACAF already knows: Mexico (like Auburn) are a bunch of dirty, rotten cheaters, both on the field and off.Oh, and a third striking similarity between Mexico and Auburn: their fans must be dumber than a bag of hammers or something.