U.S. Open recap Day 1: Inside Mariano Navone’s head as he upset Novak Djokovic

Follow The Athletic’s U.S. Open coverage Welcome to the U.S. Open briefing, where The Athletic will explain the stories behind the stories on each day of the tournament. On Day 1, what it’s like inside the mind of an underdog, a rude awakening for a young champion and smooth sailing for Americans. H

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