Saracens kept up the pressure on Premiership leaders Leicester with a crushing win over bottom side Leeds.
Michael Tagicakibau crossed as early as the second minute for the hosts, Alex Goode kicking the extras, the first of his 14 points.
Brad Barritt and James Short also went over before half-time, with Richard Wigglesworth sealing Sarries a bonus point just after the break.
Chris Wyles' solo effort late on heaped more misery on hapless Leeds.
Leeds, who parted company with director of rugby Andy Key on Thursday, have won just once in the Premiership all season.
But any hope of an upturn in fortunes was snuffed out when Leigh Hinton's clearance was charged down, Tagicakibau winning the race to touch down.
Six minutes later, Saracens rolled a maul towards the visiting line, Wigglesworth whipped the ball to his right and Barritt darted in between two defenders.
Leeds, who did not cross the halfway line until the 15th minute, were further punished by two Goode penalties before Short intercepted an Adrian Jarvis pass and raced clear to score under the posts.
With the game effectively over at the break, Wigglesworth ensured that Sarries' earned a crucial bonus point by taking the ball from the back of the ruck and spinning between two defenders to touch down.
Saracens had now done enough to ensure that Leicester's advantage at the top of the table would be back down to five points.
But there was still time for Wyles to rub salt into the Leeds wounds with a moment of magic.
The left wing gathered a pass from Neil de Kock in midfield before leaving six opponents in his wake en route to the line.
Saracens rugby director Mark McCall: "It was important to us to do a very professional job in this game. Our defence was critical and we were determined to take our defence to a new level.
"A lot of our points and our pressure actually came from our defence, which was as good as I have seen it.
"We're in the middle now of a block of difficult games, three of them away, and we've managed two good wins. But next we go away to Wasps, and then away to Leicester, before getting a mini-break during the LV Cup semi-finals and final weekend."
Leeds boss Neil Back: "I am pleased with the character we showed against a team full of beans and confidence and taking their chances.
"Our guys were sitting in the dressing room, heads down, very disappointed. But they're very together as a squad, very determined to succeed.
"People say our next game, against Newcastle, is now even more important. But it doesn't work that way. Every game we have left is important in our battle to stay in the Premiership."
Replacements: Cato for Short (54), Penney for Tagicakibau (54), de Kock for Wigglesworth (50), Saunders for Gill (45), Brits for George (50), Stevens for Nieto (50), Vyvyan for Smith (57), Wray for Saull (65).
Replacements: Thomas for Hinton (54), Burrell for S. Barrow (54), Mathie for Fury (54), Hardy for MacDonald (68), Nilsen for Thompson (68), Gomez for Swainston (54), Craig for Wentzel (50), Rowan for Fourie (68).
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