LONDON (Reuters) – Britain’s Olympic champion Duncan Scott, who won four medals at last year’s Tokyo Games, pulled out of the swimming world championships on Tuesday due to the lingering effects of COVID-19. The swimming events start in Budapest on Saturday and run until the 25th, with Scott’s absence a big blow to Team GB’s relay hopes. “I’ve decided to pull out from the World champs that start this week. Absolutely devastated,” Scott said on Twitter. “Since returning from Covid I’ve been really struggling with high intensity. Now it’s time to put my health first and focus on recovery.” Scott…