A strong second half saw Exeter Chiefs come from behind to beat Montpellier 27-24 away from home in the Champions Cup, while La Rochelle crushed Ulster 41-17.
The hosts had led 17-10 at half-time at the Altrad Stadium, where Joseph Tomane, Benoit Paillaugue and Nemani Nadolo all crossed in the first 40 minutes for the Top 14 side.
That was despite Jesse Mogg being sent to the sin bin for a deliberate knock on to break up an attack by Exeter, who kept in touch thanks to Don Armand's converted try and a Gareth Steenson penalty.
Mogg also collided with Ruan Pienaar, forcing the star scrum half, a recent arrival from Ulster, to be taken from the field in a neck brace.
The Premiership title-holders had the better of the second half, though, Ian Whitten and Nadolo exchanging converted tries before Armand claimed his second in the 64th minute.
Steenson added the extras and sent over another penalty with eight minutes to go to seal the victory, a result that sees the Chiefs sit second in Pool 3, two points behind leaders Leinster and three ahead of Montpellier.
FULL TIME: Montpellier 24 Exeter Chiefs 27— Exeter Chiefs (@ExeterChiefs) October 22, 2017
Report and Reaction to follow shortly pic.twitter.com/CY5Q6PkB81
Elsewhere on Sunday, La Rochelle took control of Pool 1 with a crushing home win over Ulster.
Jeremy Senzelle's early converted try helped the hosts edge the first half 13-10, but the visitors had no answer to a La Rochelle onslaught after the break.
Victor Vito, Kevin Gourdon, Pierre Aguillon and Jason Eaton all crossed in a blistering 15-minute spell, and Tommy Bowe's 69th-minute reply was not enough to spark a revival.
Wasps are second in Pool 1 after they thrashed Harlequins 41-10 in a match that was overshadowed by a late head injury suffered by Francis Saili.
The substitute came off the bench to score a try for the visitors but was stretchered off following a lengthy period of treatment following a collision with Joe Launchbury.
|Fred completes Manchester United switch|
|Dembele will not join a Spurs rival|
|What were the 0.4 per cent doing? Iceland captain marvels at TV audience|
|Forsberg ready for ´next big step´ after RB Leipzig|
|´Retired´ Brits on bench as Springboks ring changes for final Test|
|Meninga: Key Kangaroos positions up for grabs in Origin|
|FIFA gets shirty over Ronaldo claims|
|Soyuncu keen on Arsenal switch|
|Atmosphere much better after criticism, says Hummels|
|FIFA issues statement after ´questionable´ Amrabat decision|
|Cipriani and Robshaw to start for England at Newlands|
|Team Sky hit back at Hinault´s ´irresponsible´ Froome comments|
|Iran fans are the real winners as women get glimpse of the future|
|Beckham predicts England-Argentina World Cup final|
|Napoli should sign Meret, Zenga claims|
|Meticulous Mouratoglou shaping stars of the future|
|Journalist hands Khedira boarding pass for early flight home|
|Germany v Sweden: Muller upbeat ahead of huge World Cup clash|
|South Korea v Mexico: Germany´s conquerors set for role reversal|
|Chandimal appeals against one-match ban|
|Fofana and Lamerat start, Parra skipper for final All Blacks Test|
|Asia and Africa being left behind - Queiroz|
|Emre Can arrives for Juventus medical|
|Championship fixtures: Bielsa´s Leeds face Stoke while Lampard´s Derby go to Reading|
|Tui handed first Wallabies start, five changes for Ireland|
|Sorensen: Denmark need to ´muscle up´ against Australia|
|Nolan Arenado helps Rockies power past Mets|
|Pavon set to be unleashed as Sampaoli plots Messi masterplan|
|Pique welcomes discussion with Barca hierarchy|
|Ramos hits back at Maradona|
|Spieth praises U.S. Open champion Koepka|
|Loftus-Cheek will consider Chelsea future|
|Jorginho deal not done yet - City|
|Amrabat slams referee Geiger over alleged shirt request|
|Neymar targets improvement against Costa Rica|
|Confident Spieth ready to relish ´Car-nasty´ Open|
|All Blacks ring the changes for series finale with France|
|Sampaoli yet to decide on Argentina XI to face Croatia|
|Bale needs Real Madrid assurances, says agent|
|What game were you watching? - Costa bites back at journalist|
|Catalans capitalise on Leeds collapse to secure victory|
|Ronaldo facial hair inspired by Quaresma joke|
|This is not football - Carvajal criticises Iran tactics|
|Costa strike keeps 2018 World Cup waiting for first goalless draw|
|FIFA fines Mexico over discriminatory chants|
|Suarez announces wife´s pregnancy after World Cup heroics|
|Fortune favours Spain´s ´Supermen´ as luck proves to be Iran´s kryptonite|
|Hubert Green, U.S. Open winner who ignored death threat, dies at 71|
|Osaka injured in Birmingham, Kerber crashes out in Mallorca|
|Iran 0 Spain 1: Costa goal breaks stubborn resistance|
|Cilic battles back but Wawrinka bows out at Queen´s|
|Messi the greatest but Croatia will play to beat Argentina, says Dalic|
|Thiem stunned by Sugita in Halle|
|Salah rejects talk of rift in Egypt camp|
|England Women follow up men´s ODI record with T20I high|
|Southgate laughs off dislocated shoulder: Better me than one of the players!|
|World Cup hosts Russia qualify as Egypt make early exit|
|Pique wins 100th Spain cap in Iran World Cup clash|
|Serbia v Switzerland: Kolarov not interested in playing for a draw|
|Rakitic wary of ´uber-motivated´ Messi|
|Not my finest moment - Mickelson issues apology after U.S. Open controversy|
|´Best in the world´ Messi the victim of unfair treatment, says Sampaoli|
|Suarez off the mark but resurgent Russia will not fear stuttering Uruguay|
|Uruguay 1 Saudi Arabia 0: Centurion Suarez strikes to send La Celeste, Russia through|
|Peru boss Gareca not a fan of ´novelty´ VAR|
|Nigeria v Iceland: Hallgrimsson anticipates another intense battle|
|Griezmann to face Peru despite ankle issue and struggles – Deschamps|
|Leicester sign Norwich´s Maddison|
|Leinster face Wasps, Bath, Toulouse in Champions Cup draw|
|2019 Ashes to start World Test Championship|