The opening ceremony of the Olympic Games takes place this Friday night, but some athletes are already gunning for gold.
Women's soccer matches are the first events on the schedule. The U.S. women's national team are defending gold medalists and are scheduled to play at 6 p.m. EST against New Zealand.
Male gymnasts also start practice on Wednesday, giving athletes a chance to try out on the actual equipment.
Rio's dealing with some serious issues and doing its best to host Olympic athletes at the same time.
The Rio Olympics have struggled with security and health issues. Here's some of our coverage on those.
- Study warns Olympians the water is contaminated by human waste
- South Korea's Olympic uniforms come with built-in Zika protection
- Australian Olympic Committee called Olympic Village 'unlivable'
It's gotten the point that the U.S. men's basketball team is sleeping on a cruise ship rather than staying in the Olympic Village, NPR reports.
The team has avoided staying the village since the 1992 games.
As the Olympic torch approached Rio de Janeiro, a protest broke out. Here's a look at it.