The first members of the U.S. Olympic track and field team will be decided.
Shani Davis, a two-time Olympic 1000m champion, missed the podium at the World Single Distance Championships for the first time in his career.
Olympic sports now available on NBCSN, Universal HD (separate from Universal Sports Network), & streaming on NBC Sports Live Extra.
Despite concerns over the Zika virus, IOC president Thomas Bach says Olympic committees have "no intention" of pulling out of Rio.
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What every individual U.S. medalist has been up to.
"No athlete competing in Rio should be faced with this dilemma."