Glasgow stormed back from a 14-point deficit to open their Champions Cup campaign with a 26-21 victory at Sale Sharks.
England flanker Tom Curry will not face disciplinary action following his alleged tunnel bust-up with Argentina head coach Felipe Contepomi.
Exeter came from 26-6 down to secure a dramatic 27-26 win and inflict a rare home defeat on Sale as the Gallagher PREM resumed.
Leicester Tigers eked out a 36-35 win against Sale Sharks as Bath, Harlequins and Exeter all won by big scorelines in Saturday's Gallagher Prem action.
Billy Searle's penalty with the final kick of the game secured Leicester a dramatic 22-20 victory over Gallagher Prem champions Bath.
Debutant Nathan Jibulu scored a second-half try as Sale beat Gloucester 27-10 to claim a bonus-point win on the opening night of the Gallagher Prem season.
Adam Radwan scored two tries as Leicester set up a Gallagher Premiership final against Bath by edging Sale 21-16.
England flankers Tom and Ben Curry have signed new long-term contracts with Sale Sharks.