Darmstadt (Germany): Germany's Thomas Rohler ruled himself out of defending his Olympic javelin title because of a back injury Monday.
Rohler was injured in training and has barely competed this year. He managed one foul throw at the German championships this month before withdrawing from the competition.
"I need to listen to my body now because I want to keep doing my sport for another couple of years at the top level," the 2018 European champion said on the German Athletics Association website.