South Africa's clash with Georgia on Friday night is in jeopardy after the Springboks were forced to suspend training and place their squad into isolation because of an outbreak of coronavirus.

Second row Lood de Jager returned the positive test and on the grounds of his close contact with a number of players, the whole squad are having to quarantine.

It is the second time the Springboks have been forced to take preventative measures during the build-up to the Test series against the British and Irish Lions, which opens in Cape Town on 24 July.

South Africa beat Georgia in Pretoria last Friday in their first warm-up game ahead of the three-test series against the Lions starting this month, which is going ahead despite a third wave of infections in the country and a severe lockdown imposed just over a week ago by President Cyril Ramaphosa.

"The players have been placed in preventative isolation prior to further PCR testing and a review of the testing data by the Medical Advisory Group," SA Rugby said in a statement.

"Lood de Jager returned a positive outcome in scheduled testing and, because of his close contact with a number of squad members, the entire group has gone into isolation.

"An update will be issued following the review by the MAG and the further testing," it added.

There were three positive cases in the camp last week but Herschel Jantjies proved negative in a retest and played as a substitute in Friday's 40-9 win, which was the Springbok’s first match in 20 months since winning the 2019 World Cup.

Winger S’bu Nkosi and prop Vincent Koch, however, went into self isolation, as did World Cup heroes Lukhanyo Am and Makazole Mapimpi, who were expected to play against Georgia.

Director of Rugby Rassie Erasmus said last week he was confident about safety protocols in the camp to prevent more Covid-19 positive cases as the team moved into a secure bio-bubble but Monday's case raises new concerns.

South Africa hit a record of 26,000 fresh Covid-19 cases on Saturday, its second record-breaking tally in as many days, as a rampant third wave of infections coursed through a largely unvaccinated population.

The rampant rise in infections in Africa's most industrialised nation has stretched health services to breaking point, with hospitals out of beds and medics to man them.