Great British decathlete Ashley Bryant has been forced to withdraw from the World Championships in Moscow.
The 22-year-old admits that he is "gutted" at being unable to take part in his first major competition.
He said: "Unfortunately, I got a grade one hamstring tear last week.
"I knew I'd be up against it to recover but I thought I had a good chance because it was in good shape in the last few days, so I was hopeful.
"But in warm-up today, when I had to push it that bit more, it wasn't ready for the competition. I'm gutted, but that's sport I guess."
Bryant finished fourth at the European Under-23 Championships in Finland earlier this year.