Stephen Myler and Lee Dickson impressed as Northampton Saints moved into the Premiership's top four by upsetting leaders Saracens in a 20-15 victory at Allianz Park on Saturday.
Fly-half Myler contributed 15 of Saints' points and Dickson scored for the fourth game running in a man-of-the-match performance as the visitors edged a tight encounter against the champions.
Ben Spencer's boot put Sarries 6-0 ahead, but Myler scored the game's first try when he pounced from a Tom Wood charge down.
Saracens led at the break thanks to an Alex Goode penalty, only for Dickson to dummy his way over for Saints' second score shortly after the break.
The hosts twice brought the game back within two points, but Myler split the posts a further two times as Saints earned a huge win.
Gloucester and Sale Sharks boosted their own top-four hopes with respective wins over Wasps and Harlequins.
Richard Hibbard's try and Greig Laidlaw's boot helped Gloucester to a 13-10 win at Kingsholm, Christian Wade's try proving in vain for Wasps.
Gloucester are sixth and level on points with seventh-placed Sale, who held off Harlequins in a 29-23 triumph at AJ Bell Stadium.
Quins led 13-9 at the break, but tries from TJ Ioane and Will Addison - as well as eight second-half points from Danny Cipriani - put Sale in command and they held on despite Sam Egerton's late converted score.
Also on Saturday, Matt Banahan scored twice as Bath picked up a bonus-point 25-17 win over rock-bottom London Irish.