Olympic champion swimmer Cameron van der Burgh said that he had contracted COVID-19, offering insight into how coronavirus infection could affect 2020 Olympic hopefuls.
"I have been struggling with Covid-19 for 14 days today," South Africa's van der Burgh wrote on Twitter on Sunday.
"By far the worst virus I have ever endured despite being a healthy individual with strong lungs (no smoking/sport), living a healthy lifestyle and being young (least at risk demographic)."
"Any physical activity like walking leaves me exhausted for hours."
"The loss in body conditioning has been immense and can only feel for the athletes that contract Covid-19 as they will suffer a great loss of current conditioning through the last training cycle. Infection closer to competition being the worst."