Salesi Rayasi scored a hat-trick as Bordeaux ran in nine tries and thumped Leicester 64-14 in the Investec Champions Cup at Stade Chaban Delmas.
Bristol's Gallagher Prem play-off hopes were dealt a major blow after they suffered an 18-14 defeat against struggling Harlequins at the Principality Stadium.
Leicester took a huge step towards securing an end-of-season play-off spot with a hard-fought 33-19 victory over Bristol in an exciting Gallagher Prem clash.
Noah Caluori scored four tries as Saracens overwhelmed Newcastle 73-14 at StoneX Stadium.
Two-time European winners Munster were dumped out of the Champions Cup at the pool stage for just the fourth time since 1998 as they were stunned by Castres at Thomond Park 31-29.
Adam Radwan scored two tries as Leicester kept in contention for a play-off spot with an impressive 36-28 win over Saracens.
Greg Fisilau inspired a resurgent Exeter to a 24-10 Gallagher Premiership win over Leicester Tigers, moving them within a point of league leaders Northampton Saints.
Harry Byrne's goal-kicking proved the difference as an error-strewn Leinster held off a determined Leicester to claim a 23-15 victory in the Investec Champions Cup.