USC finally has determined its quarterback pecking order for Saturday’s season opener at Virginia, and it has a distinct orange tint to it.

Coach Pete Carroll officially named Mission Viejo High’s Mark Sanchez as the starter Wednesday, a day after doctors checked out Sanchez’s left knee and cleared him to play.

Orange Lutheran’s Aaron Corp would be the first quarterback off the bench if Sanchez needed relief. Corp has nudged ahead of Mitch Mustain after a tight camp-long battle.

“There’s a little sense of accomplishment,” Corp said. “Knowing the coaches have confidence in me gives me confidence in myself.”

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