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With political challenges pushing his back against the wall, Yoon went for the nuclear option - a move that few, if any, could have predicted.

"It took years to get over being in a club without having my back against the wall," he explained.

Wedged up against the goal line, with its back against the wall, USC stopped Minnesota once, then again, then a third time at the one-yard line.

At restaurants, I tried to snag a seat with my back against the wall.

One, who didn’t want to be filmed, speaks to us while crouched on the floor with his back against the wall.