Racing 92 ran out of time in their defeat to Toulouse, while La Rochelle survived a Top14 scare against lowly Grenoble.
Leeds Rhinos earned a first Super League win of the season at the third time of asking, with Jack Walker scoring three times versus Salford.
Racing 92 have some pretty formidable back-up for Finn Russell with Dan Carter returning to the Top14 club.
A minor calf strain means Chris Ashton will miss England's trip to face Wales in the Six Nations.
Marnus Schoeman finished with a hat-trick in Buenos Aires on Saturday as the Lions started the 2019 campaign on a winning note.
Perpignan finally had a win to celebrate, while Clermont Auvergne were too good for Bordeaux-Begles in Top14.
Zebre put on a spirited showing but ultimately fell short against Pro14 heavyweights Leinster.
In his first Super Rugby appearance, 29-year-old former sevens star Rosko Specman set the Bulls on the road to beating the Stormers 40-3.
Leicester Tigers limped to defeat at Saracens, meaning the victors once again sit top of the Premiership.
New Zealand Conference giants the Crusaders and the Hurricanes each came through testing openers in Super Rugby on Saturday.
There were concerns that Iain Henderson would not feature in the Six Nations, but the lock looks set to play a part for Ireland.
Wigan Warriors were made to pay for a slow start as Sydney Roosters won the World Club Challenge thanks to Brett Morris' hat-trick.
Gregor Townsend is optimistic there will be good news on Stuart Hogg's shoulder injury when he visits a specialist.
Sio Tomkinson's red card made a Highlanders comeback look unlikely, but Aaron Smith had other ideas and punished the Chiefs.
With Elliot Daly departing for Saracens, Wasps will hope Matteo Minozzi proves to be a 'Super Smash' signing from Zebre.
Scott Robertson had been tipped to take over with New Zealand when Steve Hansen steps down, but he has agreed a new deal with the Crusaders.
Owen Franks is looking forward to a new adventure in the Premiership after agreeing to join Northampton Saints.