Seven-time world long jump champion Brittney Reese was left wanting to punch something after making a shock exit in the qualification rounds on Saturday.
The 33-year-old American veteran, the 2012 Olympic champion and reigning outdoor champion, failed to make Sunday's final after only managing a best jump of 6.52 metres.
That left her one spot outside the top 12 and a place in the final, with team-mate Sha'keela Saunders squeezing in just ahead of Reese with a best jump of 6.53.
Reese, who jumped 7.0m at the US trials in July and who has regularly jumped that distance in practice this year, blamed no-one but herself for her exit.
"I just could never get my run-up going early," she said.
"I felt good going in, everything felt headed in the right direction. I 100% put the blame on myself. I just didn't execute the plan, totally my fault.
"I got out there and just didn't do what I was supposed to do. It was totally on me."