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.
There were comebacks for leaders Exeter Chiefs and Wasps in Friday's Premiership action.
Worcester Warriors lock Michael Fatialofa has spoken about his time in hospital as a result of a spinal injury.
Just 11 weeks after sustaining a serious spinal injury, Worcester Warriors lock Michael Fatialofa has walked unaided.
Three Premiership clubs - Gloucester, Wasps and Worcester - have reduced wages due to the financial impact of coronavirus.
Sam James and Denny Solomona were among Sale Sharks' try-scorers as Steve Diamond's side beat London Irish to go top of the Premiership.
Exeter plundered eight tries in a crushing victory over Northampton as they took another step closer to finishing top of the Premiership.
Worcester Warriors posted an update on Michael Fatialofa, while Saracens announced a pledge towards his recovery fund.
Michael Fatialofa is showing "encouraging signs of improvement" and has been moved to the Major Trauma Unit at St Mary's Hospital.
Worcester's former Hurricanes forward Michael Fatialofa is recovering from a neck injury suffered in the Premiership match against Saracens.
Michael Fatialofa is in intensive care and the Worcester Warriors lock will have surgery to ease the pressure on his spinal cord.
Worcester Warriors lock Michael Fatialofa had to be carried off on a stretcher versus Saracens and he remains under observation in hospital.
Five tries in each half saw Premiership basement side Saracens make light work of thumping Worcester Warriors on Saturday.
Five tries from the 60th minute onwards gave Gloucester just their second win in eight matches in all competitions.
Northampton Saints made it four wins from five to go top of the Premiership, while Exeter Chiefs thrashed Wasps.