CNN —Athing Mu’s hopes of defending her 800-meter title at the Paris Olympics ended in heartbreaking fashion on Monday as she fell to the floor at the US track and field trials. The trio of Nia Atkins, who won in a time of 1:57.36, Allie Wilson, and Juliette Whittaker completed the podium to make the Olympic team. Mu’s fall underlined the sometimes brutal nature of the US Olympic trials, which dictate that only the top three finishers will make the team for an individual event, regardless of an athlete’s pedigree and past results. Despite her lack of races due to a lingering hamstring issue, Mu appeared in good shape at the trials, winning her semifinal in a time of 1:58.84. “I don’t know if my season’s over yet,” Wilson told reporters on Monday.

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Persons: Athing Mu’s, Mu, Nia Atkins, Allie Wilson, Juliette Whittaker, “ I’ve, I’ve, ”, Bobby Kersee, ” Mu, Kirby Lee, Kersee, hadn’t, “, Rai Benjamin, that’s, Quincy Wilson, Wilson, Quincy Hall’s, Michael Norman, Chris Bailey, ” Wilson Organizations: CNN, Paris Olympics, Olympic, Associated Press, USA, AP, Eugene’s Hayward, US Olympic, Paris, Tokyo Games, NBC, Quincy, Bullis