Roger Federer will miss the Rio Olympics, and the rest of the 2016 season, due to a knee injury.
At least 105 Russian athletes have been banned from Rio in connection to the recent doping scandal, including gold medalist Alexander Dyachenko.
Olympic sports now available on NBCSN, Universal HD (separate from Universal Sports Network), & streaming on NBC Sports Live Extra.
U.S. national gymnastics team coordinator Martha Karolyi says Gabby Douglas could defend her Olympic all-around title in Rio this August.
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At least eight Russians are set to miss the Olympics under new IOC rules.
The IOC says it is leaving it up to global federations to decide which Russian athletes to accept in their sports.
The 2016 U.S. Olympic team was officially confirmed Saturday for the Rio Games.