Two-time Olympic decathlon champion Ashton Eaton announced his retirement, saying he had given everything he could to the sport. "I give everything to the decathlon. I did all I could. Thank u for making it the best time of my life. I'm retiring," said Eaton on his Twitter account.
The 28-year-old American, who holds the world record in both the decathlon and indoor heptathlon events, won gold in the multi-event discipline at the 2012 London Olympics and successfully defended his crown at the Rio Games last August.