Eilish McColgan finished 10th in the second women's 5000m heat after being tripped during the run.
The Scottish Olympic hopeful had led the pack up until the coming together.
Her time clocked in was 15:09.68.
Her placing means she just misses out on the final.
A tough race for @EilishMccolgan in #Tokyo2020 5000m heats - a good run until she appeared to be clipped from behind and dropped back - finishes in 15:09.68 and 10th place sadly not enough to progress to final. #Olympics #Athletics #TokyoTwelve
— scottishathletics (@scotathletics) July 30, 2021
Pic: Thanks @AthleticsImages pic.twitter.com/vMkJhOQ2mp
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