Northampton Saints ran an eight try riot as they trounced Scarlets with a 50-10 triumph to remain in contention for the semi-finals of Anglo-Welsh Cup.
A spirited second half performance from Scarlets was not enough as Saracens completed a 17-32 victory in their Anglo-Welsh encounter in Llanelli on Friday.
Fly-half AJ MacGinty kicked a penalty in the closing stages as Sale Sharks managed to edge out Scarlets with a 25-23 win at AJ Bell Stadium in the European Champions Cup clash on Saturday.
Chris Ashton scored two tries including one in the extra minutes as Saracens made an incredible comeback to draw the game 22-22 against Scarlets in the European Champions Cup encounter at Parc y Scarlets on Sunday.
Saracens will have a nervous wait ahead of their European Champions Cup clash against Scarlets on Sunday as Richard Barrington and Brad Barritt are set to undergo a disciplinary hearing on Tuesday.
Wales international Liam Williams has agreed for a three-year deal with Saracens and will be joining the defending Aviva Premiership champions at the start of the next season.
Scarlets managed to edge the Cardiff Blues by 15-10 in a hard-fought derby on Sunday to still firmly remain alive in the hunt for the Guinness Pro12 play-offs.
Wales international Dan Biggar contributed with 14 points as Ospreys successfully overhauled Scarlets challenge and registered a 19-9 victory in their Pro 12 encounter in Swansea on Tuesday.
Wales international Leigh Halfpenny missed a last minute penalty for Toulon as Scarlets held their nerve to register a 22-21 victory in their European Champions Cup clash at Parc y Scarlets on Sunday.
Scarlets flanker James Davies has received a three-week suspension by a disciplinary panel after admitting foul language and making an obscene gesture in the 31-20 loss at Toulon.
Wales international Leigh Halfpenny contributed with 16 points as Toulon defeated Scarlets by 31-20 in their European Champions Cup encounter at Stade Felix Mayol on Sunday.
Riding on a five-try performance, Scarlets managed to survive a fightback from Leinster and handed a 38-29 defeat on the league leaders during their Pro 12 encounter at Llanelli on Friday.
Sam Beard scored a double as Newport Gwent Dragons completed a 36-21 bonus point victory over Scarlets in their Anglo-Welsh Cup clash at Rodney Parade on Friday.
The Scarlets scored a major 35-point haul in the second-half which included five converted tries to bag a resounding 44-21 victory over Bath after recovering 12 points half-time deficit at Parc y Scarlets during the 2016-17 Anglo-Welsh Cup clash on Friday.
Saracens continued their winning streak with another fine performance to defeat Scarlets 44-26 in their European Champions Cup clash on Saturday at Allianz Park.