Georgia's Nikoloz Basilashvili, ranked #22 in the world, dropped out of his tennis match at the ATP Cup in Sydney a couple of days ago.
Hand gestures made by Basilashvili suggested he was feeling tightness in his chest. He was overheard saying "Every shot I'm out of breath" as he received medical treatment in his team area.
http://www.euroweeklynews.com/2022/0...ng-to-breathe/