Jarryd Hayne's NFL experiment is over after the San Francisco 49ers running back announced Sunday he is retiring.
A rugby player before heading to the United States to play football, Hayne said in a statement on the 49ers' official site he will be returning to the sport at which he previously excelled:
"I am retiring from the NFL because the Fiji Rugby Sevens team reached out to me about the opportunity to join the team for the upcoming Olympics, and I simply could not pass that chance up. The Olympics has been something I have admired since I was a little boy, and it is an opportunity I feel very similar to me joining the NFL.