Jason Lempert

LaShawn Merritt anchors the Americans in the final leg of the race

The U.S. wins its sixth straight gold medal in the 4x400m relay

More history is made in Rio as the Americans get another gold medal

Leyva seized his chance and made the most of it

Moments after winning a medal, He Zi said 'yes'

Castillo, who signed a $72 million contract last year, is considered a top-25 prospect by Baseball America.