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.
|Herath finishes off Proteas after maiden De Bruyn century|
|Hoeness hits out at Ozil after Germany retirement|
|Manziel traded to Montreal Alouettes|
|Pirates top Reds to extend winning streak to nine|
|Minnesota United 5 Los Angeles FC 1: Five-star hosts shock LAFC|
|Prospect of Anthony joining Rockets excites Harden|
|Mets place Syndergaard on DL with hand, foot and mouth disease|
|Cubs, Baez give young fan signed baseball after adult steals foul ball|
|To those who enjoy seeing others fail, I feel for you – Karius responds to criticism|
|Barbasol Championship final round to resume on Monday due to thunderstorms|
|You can´t do whatever you want in life – Mourinho responds to Martial exit talk|
|Harvick bumps Busch out of way for victory|
|Klopp hails Dortmund star Pulisic after Liverpool loss|
|Fellow pro reveals Open winner Molinari´s retirement plans|
|Manchester United 0 San Jose Earthquakes 0: Sanchez returns in uninspiring draw|
|Laporte jealous of France World Cup winners|
|Tamim fires Bangladesh to ODI success|
|Liverpool 1 Borussia Dortmund 3: Pulisic inspires comeback to deny Klopp win against old club|
|My game is back - Spieth finds Open positives despite tough final round|
|Barcelona pay tribute to retiring Marquez|
|Blow for Thomas and Froome as Moscon is excluded|
|Woods earns WGC-Bridgestone Invitational place with rankings boost|
|Clay specialist Cecchinato lifts Croatia title on return to red dirt|
|Molinari´s safety-first masterclass yields deserved Open triumph|
|Alisson to link up with Liverpool at Evian training camp|
|Woods´ return no fluke, insists Spieth|
|Johnson shrugs off shoulder injury to win second 2018 title|
|The Open 2018 diary: Kane an able golfer, hats off to Hossler|
|Tiger and Serena will talk through Open disappointment|
|Molinari: It wasn´t about being ruthless to beat Woods|
|Tiger ´ticked off´ at missed Open opportunity|
|The Open 2018: Molinari triumphs - how a dramatic final round unfolded|
|McIlroy: Great to be back in the mix|
|Open victory will take a long time to sink in, says Molinari|
|Stoke sign McClean from West Brom for £5m|
|Masterful Molinari clinches sublime Open win after Spieth, Woods fall away|
|Germany´s Ozil retires from international football|
|Vikings OL coach Tony Sparano dies|
|BREAKING NEWS: Magical Molinari wins The Open|
|Dalic claims to be world´s second best coach|
|Twelve-try Wakefield batter Hull to send Rhinos into Qualifiers|
|Sevastova cruises to Bucharest title|
|Cort Nielsen sprints to first Tour stage win, Thomas maintains lead|
|Sarri needs support to deliver Chelsea success - Zola|
|Pjanic and Rugani in Juventus tour squad as Ronaldo and World Cup stars are rested|
|Eagle has McIlroy soaring into a five-way tie for the lead at Carnoustie|
|Vettel will not lose any sleep after Hockenheim mistake|
|I manifested my dream – Hamilton revels in Hockenheim win|
|Pakistan seal crushing series sweep of Zimbabwe|
|Furious Ozil accuses German media of turning country against him|
|Woods makes his move as Spieth and Schauffele wobble|
|Vettel crash sees Hamilton retake championship lead|
|RFEF confirms one-legged Supercopa de Espana in Tangier|
|Fognini downs Gasquet to clinch Swedish Open|
|Spieth and Tiger underway as Kisner falls back|
|Iniesta, Torres suffer defeats in their J.League debuts|
|Cornet ends title drought in Gstaad|
|Martial ´very focused´ at Manchester United - Herrera|
|Root, Williamson and Bairstow - hat-trick hero Clark flourishes in Roses battle|
|Sri Lanka spinning towards crushing series whitewash|
|Ozil explains controversial Erdogan meeting|
|It´ll be hard for Tuchel to get our players – Kovac expects Boateng stay|
|Fakhar Zaman fastest to 1,000 ODI runs|
|Neymar happy for World Cup winner Mbappe|
|I was born ready! - Bellew accepts Usyk challenge|
|Tuchel seeks Rabiot answers as Barca rumours persist|
|In-form Storm go top, Rampant Roosters thrash Manly|
|Bancroft discharged from hospital after taking blow to throat|
|MLS Review: Martinez breaks record as Atlanta march on|
|Brewers top Dodgers to snap seven-game losing streak|