A "devastated" Greg Rutherford will not defend his long jump title at the IAAF World Championships in his homeland due to injuries.
Rutherford had been targeting another gold medal in London's Olympic Stadium, the venue where he was crowned Olympic champion five years ago.
But the 30-year-old revealed that he has not fully recovered from an ankle injury and a hernia problem just over a week before the event gets under way.
Rutherford said he will not compete again this year, but vowed to return in 2018.
I gave it everything and this time fell short. I won't be at the London 2017 world championships to defend my title. The ankle injury and herniations just haven't healed and I'm totally unable to jump/sprint or even cough for that matter without pain. Wishing the amazing British team all the luck in the world. I know how it feels to succeed in that stadium. It's the greatest feeling in the world
He stated: "In the last few days I have had to accept unfortunate reality. I did everything I could, but a string of injuries at the worst possible time means I am unable to defend my world title in London.
"With an incredible start to the year in training, and very promising early-season form, I have had a difficult series of setbacks as the season progressed. Most recently, a badly damaged ankle ligament and sportsman's hernia, really put paid to my plans.
"The injuries have taken longer to heal than we had hoped, and I have been unable to even jump at all in training, let alone compete.
"I am truly gutted. That stadium is such a special place for me, I am so devastated that I won't be competing in front of the best fans in the world, in the stadium that changed my life.
"But I'll definitely be there to support my British team-mates and soak up with will be an amazing atmosphere, and amazing championships."