Jamaican star runner Shericka Jackson was leading a women's 200-meter race in Hungary on Tuesday when she suddenly stopped in apparent pain.
The event was being used as a preparation for the upcoming Olympics. The 2024 Summer Games begin later this month in Paris.
Jackson's apparent injury marks the latest setback for the Jamaican team, as Olympic women's 100m and 200m champion Elaine Thompson-Herah had already withdrawn from the Games due to injury.
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Details about what injury Jackson may have suffered remain unclear.
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Jackson began to limp with about 50 meters to go in the race, but managed to cross the finish line unassisted.
Saint Lucia's Julien Alfred crossed the finish line first and finished the race in a season-best time of 22.16 seconds. Sprinter Lanae-Tava Thomas took third place.
Jackson won a bronze medal in the 400-meter event at the 2016 Olympics in Rio de Janeiro. She then won gold in the 4×100-meter relay at the Tokyo Olympics.
If healthy enough to compete in Paris, Jackson is expected to be a top challenger to American sprinter Sha'Carri Richardson in the 100-meter event.
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Richardson will be competing in her first career Olympics after running the women's 100-meter race in 10.71 seconds last month.
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