Lyon surrendered first place in Top 14 as they lost away to Bordeaux-Begles, who won a contest that was closer than the scoreline suggests.
Top 14 front-runners Lyon won again, while La Rochelle's Arthur Retiere grabbed a hat-trick and Brive left it late.
La Rochelle kept their hopes of progressing in the European Champions Cup alive by beating Sale Sharks, while Harlequins edged out Bath.
High-flying pair Lyon and Bordeaux Begles celebrated contrasting victories in Top 14 action on Saturday.
Bordeaux-Begles are back at the top of the Top 14 and increased their advantage over Toulon and Toulouse.
Bordeaux went above Lyon to rise to the Top 14 summit after beating La Rochelle, while All Blacks great Ben Smith saw red on... Read more
Brothers Billy and Mako Vunipola played starring roles as reigning champions Saracens defeated Munster in the European Champions Cup.
There were seven tries in Leinster's 43-16 European Champions Cup win over Northampton Saints as they made it 10 victories from 10.
Lyon's lead at the Top 14 summit was reduced to just one point as they were comprehensively beaten 33-8 by Montpellier on Saturday.
La Rochelle's Pierre Bourgarit learned his fate on Wednesday after being sent off for eye-gouging Sale Sharks' Tom Curry.
Sale Sharks saw off a La Rochelle side who were let down by Pierre Bourgarit, as the English team sealed a first European win... Read more
Ireland centre Garry Ringrose was the star of the show as Leinster started their bid to regain the Champions Cup with a bonus-point win.
Wing Teddy Thomas put more pressure on Stade Francais coach Heyneke Meyer as Racing 92 came out on top in the Paris derby.
An early red card was decisive as Bordeaux-Begles suffered their second defeat of the Top 14 season.
It was another game and another win for Lyon in Top 14, where Castres were defeated by Toulouse on Saturday.
Racing 92 dominated the second half to beat Pau before La Rochelle were beaten by Toulon at Stade Mayol.