After an overwhelmingly impressive season for the Americans overall, expectations and hopes were sky-high for the year's final major.

Four different American women had reached the previous four major finals, and several American men had breakthrough summers. It felt like the US Open was shaping up to be something special. Historic, even.

But it hasn't exactly gone to plan.

On just the second day of the tournament, reigning Australian Open champion and sixth-seeded Madison Keys was handed a shocking upset by Renata Zarazua . On Friday, within just moments of one another, No. 6 seed Ben Shelton , who won the Canadian Open earlier this month, retired with a shoulder injury in his third-round match, and two-time tournament semifinalist Frances Tiafoe , the No. 17 seed, was defeated

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