In a back room at the original El Cholo Spanish Cafe, a Mexican restaurant in mid-city Los Angeles so old it claims to have invented the nacho, pictures of USC immortals hang from the peach adobe walls. Matt Barkley sits beneath them, picking apart a sizzling skillet of chicken fajitas, carefully scooping each one into a flour tortilla and dressing it with green peppers. “Did you really invent nachos?” he asks a waiter, who nods wearily, as if he’s heard the question from a thousand tourists. “I love history,” Barkley says over the mariachi music. He scans the full-color prints next to the fireplace—Matt Leinart, Reggie Bush, the shiny Song Girls—but his eyes settle on a black-and-white taken more than 75 years ago, of a track star wearing a determined expression and a cardinal singlet as he glides along the perimeter of Bovard Field… Read the rest at SI.com