Australian rider Lucas Plapp has undergone abdominal surgery over injuries sustained in the Olympic time trial road race in Paris, the Australian cycling federation said on Sunday. The statement said that Plapp crashed in rainy and slippery conditions during Saturday’s race, and footage on social media showed that he slid underneath a barrier. The federation said he was “conscious and moving” but had to abandon the race. It said Plapp was taken to hospital in a stable condition and “underwent abdominal surgery in a Paris hospital” overnight. “Further medical details are not available at this t…