Astros pitcher David Paulino, who is 2-0 in six starts this season, tested positive for Boldenone and has been suspended for 80 games.
WADA said a "Russian cyber espionage group" hacked its database and posted confidential medical data about Simone Biles, Serena and Venus Williams and Elena Delle Donne.
Sprinter Justin Gatlin, who is competing in Rio despite twice testing positive for banned substances in the past, brushed off criticism by U.S. swimmer Lilly King.
It didn't take long for Justin Gatlin's name to get dragged into the doping drama swirling at the Olympics.
Newly minted gold medalist Lilly King says dopers, including American sprinter Justin Gatlin, shouldn't be allowed to compete.
The IOC says it will "explore the legal options" for a possible total ban on the Russian team from the Olympics in Rio de Janeiro.
