The United States wins gold in the men's 4x100m freestyle relay on Sunday night posting a time of 3:08.97.
Team USA has now won back-to-back golds after winning the 4x100m freestyle relay in the 2016 Rio Olympics.
Italy won silver - closely behind the U.S - as they finished with a time of 3:10.11 and Australia finished third posting a time of 3:10.22 to claim bronze.
The Americans had a .20-second lead going into the final leg, and Zach Apple pulled away to secure the gold.
Dressel was a dominating force in the men's relay and he made it clear after the race that Team USA is not to be counted out.
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"We’re never going to doubt ourselves. That’s not how Team USA works. A couple people ruled us out in that event, and we’re never going to take that. It feels nice to dominate that event," Dressel said after the race.
Tokyo Olympics
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This win gives Team USA its eighth swimming medal of the Tokyo Olympics across men's and women's events.