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Tokyo Olympics live updates: Caeleb Dressel breaks world record, Katie Ledecky wins 800 free gold

USA Today Sports

Two of USA Swimming's biggest stars are back in the pool Saturday in Tokyo.

Caeleb Dressel, who already has two golds in these Olympics, could break his own world record when he swims in the final of the 100-meter butterfly to kick off the day's swimming events.

During Friday's semifinals, Dressel set a new Olympic record with a time of 49.71, just over two tenths of a second off from the world record he set in 2019. The two-time Olympian is the only man to have ever broken 50 seconds in the event.