Wasps beat Ulster to help Saracens into the last eight of the European Champions Cup.
Thirteen Barbarians players have been charged by the Rugby Football Union for a breach of COVID-19 protocols which caused the cancellation of their match against England.
Exeter Chiefs was rewarded for a blistering start and heroic defence as it won the European Champions Cup for the first time with a thrilling 31-27 win over Racing 92.
Saracens were spurred on by the prospect of "another week together" after holding off a fightback from Leinster to reach the European Champions Cup semi-finals.
Saracens kept its European Champions Cup defence alive despite Rhys Carre's early red card at Ospreys, while Clermont Auvergne, Toulouse and Exeter Chiefs booked quarter-final spots.
Garry Ringrose scored a hat-trick as last season's runner-up Leinster beat Benetton 33-19 and Clermont Auvergne thrashed Harlequins in the European Champions Cup.
Saracens secured the European Champions Cup for a third time in four seasons after it rallied from a first-half deficit to defeat Leinster 20-10 at St James' Park.