Saracens fell victim to a tremendous Leicester Tigers performance on Sunday, while there was a rare win for London Irish against Worcester.
The Premiership saw its first draw of the season, while leaders Exeter Chiefs and Bath were winners by a solitary point on Saturday.
Two years after leaving for Gloucester, Matt Scott is to return to Pro14 with hometown club Edinburgh.
Johan Ackermann and son Ruan will face no further police action over a nightclub incident, a decision Gloucester Rugby have welcomed.