England head coach Eddie Jones is self-isolating after assistant Matt Proudfoot tested positive for COVID-19, England Rugby said on Thursday (NZ time).
Jones and assistant Simon Amor have been identified as contacts and must isolate for 10 days under government guidelines.
The sport's national giverning body confirmed forwards coach Proudfoot was tested before next month's Six Nations tournament and was not displaying any symptoms.
Champions England are due to announce their Six Nations squad on Friday with players gathering at St. George's Park, the England soccer team's training base, on January 28.
"Following further negative tests, Jones and Amor will join up with the group on Thursday 28 January," England Rugby have said.
Reds assistant coach Ed Robinson would join up with Jones' squad for the Six Nations in the capacity of skills coach as a replacement for Jason Ryles, who is set to miss the tournament.
Ryles, who is in Australia, decided not to join up with the team for the Six Nations due to the COVID-19 pandemic.
England begin the defence oif their Six Nations title against Scotland at Twickenham on February 7.