Sarah Sjostrom Surpasses Phelps with 21st Individual Medal and World Record

Sarah Sjöström surpasses Michael Phelps' record by winning her 21st individual medal in the women's 50-meter freestyle at the world championships. Katie Ledecky and Leon Marchand also break Phelps' records, while Summer McIntosh and Ruta Meilutyte secure gold medals. Ahmed Hafnaoui wins the men's 1,500-meter freestyle, and Hunter Armstrong and Justin Ress claim gold in the men's 50-meter backstroke. The U.S. dominates the relays, and Australia and the U.S. lead in overall medal counts.