Stats, facts and more on the athletes to watch for this year. — -- More than 11,000 athletes will be competing at the 2016 Summer Olympics in Rio. Here are stats, facts and more on 28 ...

1984 — The Summer Olympics open in Los Angeles with a record 140 nations competing. The Soviet Union and 13 Communist allies, including Cuba and East Germany, boycott the games. 1987 — Laura Davies ...

United States' Michael Phelps, left, and South Africa's Chad Le Clos prepare to compete in the final of the men's 200-meter butterfly at the 2016 Summer Olympics, Aug. 9, 2016, in Rio de Janeiro.