Pool B of the Heineken Champions Cup has been turned upside down due to a COVID-19 outbreak.
Sunday's meeting of Toulouse and Exeter Chiefs has been cancelled after the Premiership club confirmed that a number of players and staff tested positive for the virus.
The Pool B clash of Glasgow Warriors and Lyon has also been cancelled.
That's because the Chiefs played Glasgow in last week's first round of fixtures, and many of their players are now self-isolating in accordance with the guidelines of Public Health Scotland.
The EPCR say they will convene its "Match Result Resolution Committees to determine the results of the cancelled matches and the decisions of the committees will be communicated as soon as practicable."
The decision of the EPCR Match Result Resolution Committees will have a huge bearing on the futures of Munster, Connacht and Ulster. All are competitors in Pool B along with the affected teams.
EPCR has been informed that a number of Exeter Chiefs players and staff have tested positive for COVID-19, and that in accordance with public health guidelines, the club will not be able to send a match day squad to fulfil its Heineken Champions Cup, Round 2 fixture against Toulouse at Stade Ernest Wallon on Sunday (20 December). The Pool B match is therefore cancelled.
As Exeter Chiefs played against Glasgow Warriors in Round 1 of the tournament, Glasgow Warriors have advised EPCR that many of its senior players are now self-isolating in accordance with public health guidelines, and consequently, the club is not in a position to field a match day squad of the appropriate standard for its Heineken Champions Cup, Round 2 fixture against Lyon at Scotstoun Stadium on Saturday (19 December). The Pool B match between Glasgow Warriors and Lyon is therefore also cancelled.
As per its COVID-19 protocol, EPCR will convene Match Result Resolution Committees to determine the results of the cancelled matches and the decisions of the committees will be communicated as soon as practicable.