Rio

The first Olympics hosted in South America get off to a rocky start in Rio de Janeiro as Brazil faces a growing number of Zika virus cases and construction delays, but they still give fans plenty to cheer about. First-time events include women's rugby and returning after long hiatus are golf (112 years) and men's rugby (92 years). Among the headlines: Ibtihaj Muhammad, a U.S. fencer, becomes the first American athlete to compete in the Games in a hijab, more than 100 Russians are banned for doping, Jamaican Usain Bolt adds three more gold medals to his collection, U.S. gymnast Simone Biles wows with four golds of her own, including individual and team all-around, plus a bronze, and swimmer Michael Phelps brings another five gold medals to Team USA, while teammate Katie Ledecky, at age 19, comes home with four golds and a silver. Venus Williams, Kerri Walsh Jennings and Alison Felix are also American standouts.