Wales and Dragons centre Jamie Roberts has been tested positive for Covid-19 ahead of the resumption of Pro14 following a five-month hiatus.
Roberts joined Dragons from Stormers after the Super Rugby season was disrupted by the pandemic coronavirus and has been training with the Welsh regional side ahead of their Sunday's game against Ospreys but now will isolate himself raising doubt on the weekend's game with his close contacts also under scrutiny.
Being a qualified doctor, the 33-year-old also worked with National Health Service in Cardiff during the lockdown when he was a free agent.
"Dragons Rugby has returned a positive case for COVID-19 in Welsh Rugby’s testing programme in the round of tests taken week commencing Monday, August 10," read a statement from Dragons.
"All subsequent Public Health Wales and Government guidelines are being followed and the individual – who is symptom free and in good health – is currently isolating.
"Dragons Rugby is part of the wider Welsh Rugby Union screening programme which has conducted over 1,100 tests to date as part of the return to training/ playing process.
"This is a confidential and private health matter and we will make no further comment."