Exeter Chiefs reached their first European Champions Cup final at Toulouse's expense after Racing 92 dumped Saracens out.
Cheslin Kolbe starred for Toulouse against Ulster, while Exeter Chiefs got the better of Northampton Saints in the European Champions Cup.
Holders Saracens are a win away from the Champions Cup final after beating Leinster, while Racing 92 powered past Clermont Auvergne.
Due to the exceptional circumstances of the COVID-19 crisis, EPCR has changed the formats for the Champions Cup and Challenge Cup.
New dates for the finals of the Champions Cup and Challenge Cup have been set, with Marseille still in line to stage them.
Ahead of their relegation to the Championship, Saracens have been told they can continue to play in this season's European Champions Cup.
Due to the coronavirus pandemic, the Top 14 is to be abandoned for 2019-20 with continental rugby postponed for four months.
Due to the coronavirus pandemic, the conclusion to rugby's top European competitions will no longer take place in May.
There were reports Saracens faced expulsion from the European Champions Cup, but the holders have been hit with a fine.
Saracens will discover in London on Friday whether they will face any action for picking Titi Lamositele against Racing 92.
Championship-bound Saracens will be without Will Skelton until the end of next month following his dismissal last weekend.
Saracens have confirmed Billy Vunipola suffered a broken arm against Racing 92, seemingly ruling him out of England's Six Nations campaign.
England are likely to be without Billy Vunipola for the Six Nations after he injured his arm in Saracens' win over Racing 92.
A thrashing of Lyon ensured Leinster made it five wins from five in the European Champions Cup, while Racing 92 reached the last eight.
La Rochelle kept their hopes of progressing in the European Champions Cup alive by beating Sale Sharks, while Harlequins edged out Bath.
Lyon are reportedly targeting Ireland fly-half Johnny Sexton, but Leinster insist there has been no suggestion he will leave the province.