United States' Allyson Felix competes in the women's 400-meter final during the athletics competitions of the 2016 Summer Olympics at the Olympic stadium in Rio de Janeiro, Brazil, Monday, Aug. 15, 2016.
United States' Allyson Felix competes in the women's 400-meter final during the athletics competitions of the 2016 Summer Olympics at the Olympic stadium in Rio de Janeiro, Brazil, Monday, Aug. 15, 2016. Lee Jin-man AP
United States' Allyson Felix competes in the women's 400-meter final during the athletics competitions of the 2016 Summer Olympics at the Olympic stadium in Rio de Janeiro, Brazil, Monday, Aug. 15, 2016. Lee Jin-man AP

What to Watch on Saturday: Allyson Felix goes for Olympic gold

August 20, 2016 06:00 AM

UPDATED August 16, 2016 12:12 PM

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