Premiership Rugby confirmed Sale Sharks' match with Worcester Warriors had been cancelled amid a spate of coronavirus positives.
Positive COVID-19 tests at Sale Sharks will not prevent their crucial last game of the regular season from being played this weekend.
A bonus-point 40-3 victory over Leicester Tigers boosted Bristol's hopes of finishing in the Premiership's play-off places.
Saracens and Exeter Chiefs will go their separate ways at the end of the season, but a second-string battle was a reminder of their rivalry.
Leicester Tigers were thrashed by Wasps while Sale Sharks held off Saracens in Wednesday's Premiership matches.
Exeter Chiefs and Bristol Bears are the top two in the Premiership after victories on Friday.
Ollie Thorley scored four first-half tries in Gloucester's win against Leicester, while two Exeter hat-tricks helped to crush Worcester.
Worcester Warriors won their first game of 2020 on Wednesday, while Bath's strong second-half display led them to a third win a row.
There were comebacks for leaders Exeter Chiefs and Wasps in Friday's Premiership action.
Leaders Exeter Chiefs resumed the season with a win over Leicester Tigers, while Bristol left it late to down Saracens.