British athlete Mara Yamauchi says she is undecided on whether she will continue running after dropping out of the London 2012 Olympic marathon.
Oxfordshire-born Yamauchi bowed out after 10km of the race on Sunday
after suffering a foot injury and admits she does not know if she will race again.
"I have to get my foot better and then think carefully about what I do," Yamauchi told BBC Radio Oxford.
"Do I continue to run competitively or do I retire or do I do something else?"
Yamauchi, 38, revealed she had suffered an injury in January that she thought had healed, only for it to resurface again in May.
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Despite knowing she was not fully fit Yamauchi feels that she made the right decision in running in the race.
"I got a heel bruise in January, but I got rid of it," she said.
"I built up to fitness but it came back at the end of May. It was quite painful but I decided to run.
"Standing on the start line I was confident I could do a good run, I knew it might hurt, but by 10km it was unbearable.
"The crowd went quite quiet but they were so kind, they applauded me and I was really grateful for their support.
"I feel I did the right thing, I wanted to give it a go, had it not have been the Olympic marathon maybe I wouldn't have raced.
"It's a shame how it ended, but I'm glad I gave it a go."