Raiders secretly prepare for high altitude game against Texans in Mexico City

ALAMEDA, Calif. (KGO) -- Some top secret training is going on in Alameda to help the Oakland Raiders prepare for their next game against the Houston Texans.

They'll be playing in Mexico City Monday night.

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It's not the Pentagon, but might be close. A building filled, not with state secrets, but football secrets. Inside there's code of silence.

"We got things going on. I'd rather not say," said defensive tackle Justin Ellis. When asked why everyone was so secret he said, "That's how it be. How it is."

Peering between the cracks, here's what we know: This week the Raiders travel to Mexico City for a Monday night game against Houston.

They've been getting ready.

When the Raiders practice in Alameda, or play in Oakland, they're essentially at sea level. Denver, by contrast, is a mile high and Mexico City is 7400 feet--thin air.

It's not alpine thin certainly. They won't need a Sherpa, but the Raiders did send Latavius Murray in advance to scout the conditions.

"Yeah I've been over twice now," said Murray. "I worked out once in the hotel room but that was indoors."

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