London hands over the Olympics to the next host , Rio de Janeiro . Team USA battles Brazil for gold in men 's rowing . Kenya and Uganda are favorites in the women 's rowing . Men 's boxing and women 's pentathlon also take place Sunday .
London hands over the Olympics to the next host , Rio de Janeiro . Team USA battles Spain for gold in men 's basketball . Kenya and Ethiopia are favorites in the men 's marathon . Men 's boxing and women 's pentathlon also take place Sunday .