Motor racing: Disgraced karter Luca Corberi quits the sport after throwing a bumper at his rival

October 06, 2020 5:57 PMLONDON (Reuters) - An Italian who threw part of his go-kart at a rival during a world championship final, prompting 2009 Formula One champion Jenson Button to call for a life ban, apologised on Monday night (Oct 5) and said he was leaving the sport.