England head coach Eddie Jones is self-isolating after assistant Matt Proudfoot tested positive for coronavirus.

England Rugby announced on Wednesday that Proudfoot, who is asymptomatic, returned a positive in the latest round of pre-tournament testing ahead of the Six Nations and is now in isolation.

Jones and attack coach Simon Amor were identified as close contacts and must also self-isolate for 10 days, as per United Kingdom government guidelines.

Should they return further negative tests, Jones and Amor will be able to link up with the squad at St George's Park from January 28.

England, who are set to name their squad on Friday, are due to begin the defence of their Six Nations title against Scotland at Twickenham on February 6.

Jones is expected to name a 28-man selection featuring mostly established international players, with strict COVID-19 bubble arrangements meaning he cannot call up a larger group and allow those needing game time to return to their club sides.

Rassie Erasmus says South Africa will "explore any option" to ensure they do not miss out on facing the British and Irish Lions.

The Lions are scheduled to lock horns with the world champions in July and August, but the tour is in doubt due to the coronavirus pandemic.

Playing the series in the United Kingdom has been mooted as a potential alternative to the Lions flying out to South Africa.

Delaying the tour until next year could be another alternative and a decision is expected to be made next month, with talks among the Lions board ongoing.

South Africa's director of rugby Rassie Erasmus, who who coached the Springboks to Rugby World Cup glory in 2019, says the Webb Ellis Cup holders are willing to be flexible over where and when they take on the Lions.

"We desperately want to play the Lions, and we will do anything to play them," he said in a press conference.

"This series only comes around every 12 years. I have heard the different calls and opinions about the tour, and although we didn't play in the Rugby Championship because of player welfare, it was also because we knew there was this big series in 2021.

"If option one of playing in South Africa doesn't work out, we will go to option Z to make it happen.

"We don't want to lose out on the Lions series, we feel we deserve to play against them. I want to, Jacques Nienaber [Springboks head coach] wants to, the players want to. So from our side, we'll do anything.

"But yes, we will explore any option to play the Lions, we will play next year, we will play over there. This is the view from a player and management perspective."

Kyle Sinckler will miss England's opening game in this year's Six Nations after the prop was handed a two-week ban for swearing at a referee.

The Bristol Bears forward was cited by an independent commissioner for failing to respect the authority of a match official during Saturday's Premiership game against Exeter Chiefs.

Sinckler contested the charge at a disciplinary hearing, during which he accepted he had used foul language.

The 27-year-old was handed a suspension by an independent panel and will now be unavailable until February 9, three days after England open their 2021 campaign against Scotland.

"The player was candid in his evidence as to why he had done so and regretted his actions," a statement from the independent panel read.

"The panel found that his actions disrespected the authority of the referee and it was in breach of a core value of rugby - respect of match officials - and warranted a red card.

"The panel determined that in all the circumstances it was a low entry point with no relevant mitigation. The sanction is a two-week ban."

Following on from the Calcutta Cup clash at Twickenham, Eddie Jones' squad host Italy on February 13.

The Six Nations is scheduled to go ahead amid the ongoing coronavirus pandemic, though the European Champions Cup and Challenge Cup have been temporarily suspended after French authorities ruled the participation of Top 14 clubs to be too much of a public health risk.

The European Champions Cup and Challenge Cup have been temporarily suspended after the French authorities ruled the participation of Top 14 clubs to be too much of a public health risk. 

European Professional Club Rugby (EPCR) made the announcement on Monday following a meeting last week with French government officials. 

Due to concern over a new variant of coronavirus, the French government has decided to prevent its clubs from participating in games both in France and in the United Kingdom and Ireland. 

It means the EPCR has been forced to suspend the Champions Cup with two rounds of the pool phase remaining. The Challenge Cup is in its preliminary phase. 

The development would appear to place the 2021 Six Nations, scheduled to start with a meeting between France and Italy in Rome on February 6, in jeopardy. 

Last year's Six Nations tournament was only completed in October because of the pandemic-enforced delay. 

An EPCR statement read: "EPCR and the Ligue Nationale de Rugby took part in a meeting by audio conference last week with representatives of the French ministries of the Interior, Health and Sport, as well as of the President's office. 

"Notable updates to EPCR's COVID-19 protocols were presented to the French authorities, including the addition of PCR tests no earlier than three days before matches in the tournaments, conforming to French government guidelines and supplementing the existing, meticulous contact tracing measures put in place with a view to limiting the risk of transmission. 

"Against the backdrop of the recent detection of a new strain of coronavirus, the French government has directed that French clubs postpone their participation in EPCR's tournaments for the month of January, both for matches scheduled in France and for those due to be played in the United Kingdom and Ireland. 

"On the basis of this directive, EPCR had no choice but to temporarily suspend the pool stage of the Heineken Champions Cup and the preliminary stage of the Challenge Cup. 

"While respecting all further directives by governments and local authorities, and prioritising the health and welfare of players and club staff, EPCR, in conjunction with its shareholder leagues and unions, remains committed to trying to find a solution which will enable it to resume and complete the tournaments as soon as practicable. 

"EPCR will be making no further comment at the present time."