Saracens prop Mako Vunipola will miss the fourth round of Six Nations clash against Wales after he was stood down from the training camp due to 'medical issue'.
The 29-year-old missed the games against Scotland and Ireland as he had to fly to Tonga for family reasons and on his return to England he had to travel via Hong Kong, which has been hit by coronavirus.
Even though, Vunipola did not show any symptom of coronavirus, the Rugby Football Union has decided to isolate the 6ft prop as a precaution.
“Mako is not in camp on medical grounds. He is not sick, but it is a precaution,” a Rugby Football Union spokesperson said.
Meanwhile, Saracens responded back saying that Mako and his brother Billy are with the club as they did not show any symptom of coronavirus for the last two days with the former being available for selection in the weekend's Gallagher Premiership clash.
"Billy Vunipola and Mako Vunipola returned to Saracens after visiting family in Tonga, which included a short stop at Hong Kong Airport.
"Travellers returning from Hong Kong are not currently subject to mandatory quarantine or self-isolation unless they become symptomatic.
"Neither Billy or Mako have displayed symptoms of the Coronavirus (Covid-19) and on their return to London were assessed by the club's medical staff.
"The duo have been around the Saracens environment for the past couple of days, with the latter available for selection this weekend.
"Saracens will continue to follow the Public Health England and World Health Organisation regulations surrounding coronavirus and the medical staff will be closely monitoring Billy and Mako on a regular basis."