A mammoth late penalty from Scott Spedding snatched a 24-21 win for Clermont Auvergne to extend Saracens' losing streak to seven matches, and Elliot Daly starred as Wasps ended La Rochelle's 100 per cent European Champions Cup record.
Injury-hit Sarries were subjected to a 46-14 mauling by the Top 14 champions in a Pool 2 clash rearranged for Monday due to snow, but looked much more like the side that has won back-to-back Champions Cup titles at a raucous Stade Marcel-Michelin on Sunday.
A superb early Ben Spencer solo try and eight points from the boot of Owen Farrell gave fired-up Sarries a 13-0 lead inside 10 minutes, but three Morgan Parra penalties and one from Spedding reduced the deficit to just a point at half-time.
Another two successful Parra kicks from the tee made it advantage Clermont, who lost wing Alivereti Raka - scorer of a quickfire hat-trick at Allianz Park six days earlier - and France centre Damian Penaud to injury in the first half.
There were howls of derision from the Clermont faithful when Nick Abendanon was shown a yellow card for taking a man out in the air after another penalty from Farrell, who then fed Alex Lozowski to put Sarries 21-18 to the good 17 minutes from time.
Farrell failed to convert as whistles reverberated around the stadium and Parra levelled a classic contest with Juan Figallo in the bin, Spedding providing the final twist by stepping up to hold his nerve under pressure to put Clermont seven points clear of Sarries.
Ospreys moved above the holders into second spot with a 32-15 bonus-point win in Northampton Saints' first match since director of rugby Jim Mallinder's sacking, Rhys Webb claiming a double at the Liberty Stadium.
Top 14 leaders La Rochelle remain top of Pool 1, but Wasps breathed new life into their bid to qualify for the quarter-finals with a 21-3 success at the Ricoh Arena inspired by Daly.
The versatile England international scored a try in each half before limping off and Tom Cruse also barged his way over in a richly deserved victory which put Wasps five points behind their opponents, who hammered the Premiership side 49-29 last weekend.
Ian Keatley booted 20 points and CJ Stander scored a second-half try to give Munster a 25-16 win to go four points clear at the top of a tight Pool 4, their first success at Leicester Tigers in 11 years spoiling Manu Tuilagi's comeback and leaving the Premiership side facing elimination.
|Sharks upset Panthers as Eels finally get off the mark|
|Lopes: A return to Man City? My present is Monaco but the future belongs to God|
|Jaguares catch out Brumbies in Canberra|
|Montella urges Sevilla to use Copa setback as motivation|
|Zheng topples Wang in Zhengzhou final|
|Rakitic desperate for Iniesta stay|
|Jardim one of the best in the world – Lopes praises Monaco boss amid interest|
|Napoli refusing to give up on Scudetto dream|
|It´s a good time for Iniesta to leave Barca, says father|
|Athletics´ Manaea no-hits Red Sox, Darvish struggles once again|
|Pelicans reach second round, 76ers take 3-1 lead and T-Wolves down Rockets|
|MLS Review: Five-star LAFC, Dynamo headline goal frenzy as Atlanta silence Ibra´s Galaxy|
|Busch pulls away to claim third successive NASCAR win|
|Sanchez hails legendary Wenger ahead of Arsenal exit|
|Valverde: Nothing behind Iniesta substitution amid growing CSL links|
|White Sox´s Farquhar in critical condition after brain haemorrhage|
|Cubs place Ben Zobrist on 10-day DL|
|Hoffenheim boss Nagelsmann dismisses Arsenal and Chelsea links|
|Johnson, Landry tied for Texas lead as Mullinax sets course record|
|Gattuso, Mirabelli apologise to Milan fans after ´embarrassing´ Benevento loss|
|Marquez to start fourth after being stripped of Austin pole|
|Iniesta to make decision on his future public ´this week´|
|United want to win everything next year, says Wembley hero Sanchez|
|Cardiff edge Forest to boost promotion push|
|Bartomeu confirms Iniesta has an ´offer´ amid Chinese Super League reports|
|Messi second player to score in five Copa finals|
|Khan makes up for lost time with 40-second Lo Greco knockout|
|Mourinho challenges Alexis after Wembley star turn|
|Vieira ready for Arsenal job, says Guardiola|
|FA Cup win would represent successful season - Conte|
|Guardiola: I want Manchester City to be a Premier League machine|
|Marquez crashes before taking controversial pole in Austin|
|Sevilla 0 Barcelona 5: Suarez and Messi lead crushing Copa final win|
|Defending champion Selby dumped out in first round|
|AC Milan 0 Benevento 1: Rossoneri suffer again as bottom side stave off relegation...for now|
|Ulster stay alive in dramatic fashion as Bellini sparkles for Zebre|
|Semi-final pain for frustrated Kane|
|London stay was crucial to FA Cup Wembley win - Mourinho|
|Pochettino: Spurs need four more years – with me or another|
|Kaepernick honoured with Amnesty International award|
|He has not delivered optimal performances - Stoger explains Schmelzer omission|
|Kvitova and Pliskova put Czechs in control|
|Modric open to Ibrahimovic union in MLS|
|Spurs can´t keep doing this – Alli|
|Bulls keep Rebels waiting for South Africa win, Sharks beat Stormers|
|Heynckes highlights importance of ´psychology´ before Real Madrid clash|
|United are about winning titles and playing finals, says happy Herrera|
|Pogba and United the comeback kings again|
|Destructive De Villiers demolishes Daredevils|
|Giroud thanks Wenger for making his ´dream come true´|
|Borussia Dortmund 4 Bayer Leverkusen 0: Reus and Sancho star as Stoger´s side go third|
|Manchester United 2 Tottenham 1: Sanchez and Herrera seal comeback to book FA Cup final spot|
|Zaha´s no diver, insists Hodgson|
|Quiros maintains one-shot lead in Rabat|
|Championship Review: Wolves win title, Sunderland relegated|
|Nishikori fights back to reach Monte Carlo final|
|´Nothing compared to that night´ - Masters victory left Allen feeling flat|
|Imperious Leinster ease into Champions Cup final|
|Wilson backs Wenger for international role|
|West Brom comeback branded ´useless´ by Klopp|
|Injured Kyrgios doubtful for French Open|
|Packers QB Aaron Rodgers ventures into ownership, buys stake in NBA´s Bucks|
|Lewandowski breaks Bundesliga record in Bayern Munich victory|
|Watford 0 Crystal Palace 0: Stalemate edges both sides closer to survival|
|Inter not inferior to Roma and Lazio, Spalletti insists|
|Pogba and Sanchez start for Manchester United at Wembley|
|Gayle fires Kings XI to the top of the table|
|Klopp applauds Ings´ performance|
|Hannover 0 Bayern Munich 3: Lewandowski breaks Bundesliga record|
|Livermore urges West Brom to ´keep fighting´ as relegation looms|