Japan's Ryosuke Irie missed out on a medal Tuesday as he finished fourth in the men's 100-meter backstroke at the world swimming championships.Irie touched the wall at the Danube Arena in 53.03 seconds, finishing 0.59 seconds behind gold medal winner Xu Jiayu of China. Americans Matt Grevers (52.48) and Ryan Murphy (52.59) took silver and bronze."I didn't think I'd do this well but it's not easy at the world's top level," said Irie, who decided to continue his competitive career after failing to win a medal at the Rio Olympics."The competition is getting tougher. (I feel) the gap in start t…READ FULL ARTICLE