World champions South Africa will prioritise the Rugby Championship in New Zealand later this year over a tour to Europe due to travel and calendar constraints.
The Springboks have not been in action since lifting the World Cup in Japan last year, and face a somewhat uncertain schedule in the remainder of 2020 due to the impact of the Covid-19 pandemic.
South African Rugby chief executive Jurie Roux said they were hoping to start an eight-team domestic competition in either late August or early September to prepare players for an international window somewhere between October and December.
"Whatever we can fit into that window we will and we are trying to deliver the Rugby Championship, which would almost certainly be in the bubble in New Zealand," Roux told reporters.
"If we do that there will be no time for other internationals, and in any case the northern hemisphere has been clear that they want to complete the Six Nations and then play a tournament with Japan and Fiji in that period."
Roux confirmed that the inbound tours by Scotland and Georgia, that had been scheduled for July, were cancelled and there would be no attempt to play them later in the year.
The Boks were due to travel to Italy, France, Ireland and Wales for their traditional set of November internationals, the latter two fixtures providing vital preparation for a home meeting with the British & Irish Lions in July and August 2021.
But it now appears highly likely their only Tests prior to that lucrative tour will be against southern hemisphere opposition.