The hopes of an American man winning the US Open took a huge hit on Friday when No. 6 seed Ben Shelton and No. 17 Frances Tiafoe both lost their third-round matches.

Shelton was the first of the two to be bounced from the tournament when he was forced to medically retire during his match with Adrian Mannarino.

Shelton was dealing with a shoulder injury during the match, taking a medical timeout during the fourth set. He was able to continue and won the following game. However, Mannarino managed to force a decisive fifth set after securing a break on Shelton's next service game.

Unfortunately, Shelton continued to be bothered by the injury and was forced to medically retire before the conclusion of the match. It is an unfortunate situation for the 22-year-old, who won the National Bank

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