Egyptian judo athlete Islam El Shehaby has been reprimanded and sent home from Rio 2016 after refusing to shake his Israeli opponent's hand.
The International Olympic Committee says El Shehaby received a "severe reprimand" for his behaviour following his first-round heavyweight bout loss to Or Sasson last Friday.
When Sasson extended his hand, El Shehaby backed away, shaking his head.
The referee called the 34-year-old El Shehaby back to the mat and obliged to him to bow; he gave a quick nod and was loudly booed as he exited.
The IOC said the Egyptian's conduct "was contrary to the rules of fair play and against the spirit of friendship embodied in the Olympic values", adding that the Egyptian Olympic Committee also "strongly condemned" El Shehaby's actions "and has sent him home".
Meanwhile, 25-year-old Sasson has returned home with a bronze medal after coming third in the 100kg category.