Worcester beat Premiership champions Saracens 16-11 to boost their chances of remaining in the top flight.
Worcester are currently in the relegation zone, and so this win against one of the competition’s stronger teams would have helped their cause.
Saracens started the game with Springboks John Smit, Schalk Brits and Neil de Kock, as well as former Lions loose forward Ernst Joubert, but none of these men could prevent Worcester from taking the spoils.
In other Premiership action on Friday, Sale scored six tries in their 46-34 thumping of Wasps.
Former Cheetahs centre Ronnie Cooke scored a try for Brive in their 22-9 win against Lyon. The other Top 14 match saw Agen beating Castres 23-12.
In the Pro 12, BJ Botha’s Munster edged Cardiff 16-13 while Ruan Pienaar kicked a penalty and a conversion in Ulster’s 15-14 win over the Ospreys. Connacht were too strong for Edinburgh at home, winning 26-14.