European Champions Cup

Premiership Rugby's decision followed new guidance from the United Kingdom government on Monday.

British prime minister Boris Johnson encouraged people to avoid mass gatherings and all "non-essential" travel and contact with others.

"The safety of our fans, players and staff is our first priority, and we would like to wish all of those who are affected our heartfelt best wishes and a very speedy recovery," a Premiership Rugby statement read.

Even on the back of a 62-14 victory over Northampton Saints on Saturday, the Pool 2 runners-up still faced the possibility of elimination with their fate in the hands of other teams.

But Premiership rivals Wasps did them a favour with a comfortable 26-7 victory over Ulster, securing Sarries' qualification as one of the three best second-placed teams, though they face a last-eight clash against a Leinster side who won all of their pool games.

Wasps raced into a 21-0 lead and their fourth try after 55 minutes gave them a 16-point advantage against the bottom team in Pool One.

James Haskell was sent off for Wasps after a late flurry of tries saw Quins trail 28-26 with 10 minutes left.

Then came James Chisholm's 80th-minute winner for Quins for their first victory in the competition this season.

One negative for Quins and England was an eye injury to full-back Mike Brown.

The home side came into Friday's clash having learned that flanker Marcell Coetzee will be out for another nine months after returning to South Africa to have further surgery on a serious knee injury.

Wasps are injury-ravaged themselves with director of rugby Dai Young complaining of having to open their European campaign just five days after defeat to Saracens in the Premiership, while Ulster enjoyed an extra 48 hours' rest following their Pro14 win over Connacht last weekend.

The lively winger was a fans' favourite at Allianz Park, but Sarries' director of rugby McCall fears he could return to haunt them in Saturday's showdown as the English side seek a second consecutive Premiership and European double.

With 11 tries in 15 games, Strettle is likely to be Clermont's danger man at Murrayfield and McCall knows it. 

"Strettle is playing outstandingly well at the moment, he was playing outstandingly well when he left here," he said of the 33-year-old, who departed in 2015.

The 42-year-old, who won 62 caps for Ireland, was in France to prepare Munster for their European Champions Cup clash against Racing 92.

That match, scheduled for Sunday, has been postponed.

A joint statement from the IRFU and Pro12 outfit Munster did not disclose any further details of Foley's passing.

"Munster Rugby management are liaising directly with Anthony's family and will provide them with any assistance and support required," it added.