Postpublished at 16:15 British Summer Time 29 October 2016
Saracens 24-3 Leicester
Tim Streather
Saracens back on BBC Radio London
Saracens' kicking game is causing all sorts of problems for Leicester.
FT: Saracens 24-10 Leicester
Wyles & Maitland cross for Sarries
B Vunipola extends lead after HT
FT: Harlequins 36-14 Worcester
Louise Gwilliam
Saracens 24-3 Leicester
Tim Streather
Saracens back on BBC Radio London
Saracens' kicking game is causing all sorts of problems for Leicester.
It's tough out there for Leicester today. Every mistake is being punished by this clinical Saracens outfit.
And that's without injured Maro Itoje.
The home side have Leicester pinned inside their own half as Ben Youngs launches a huge kick into touch.
Harlequins 14-7 Worcester
The second half has started well for Harlequins at The Stoop - they now lead Worcester 14-7 after James Horwill's converted try.
Another golden chance squandered by Leicester.
Peter Betham picks a lovely line but as he's wrapped up his offload flies into touch off the hand of Alex Goode.
And Saracens disrupt the resulting line-out to clear their lines.
Saracens 24-3 Leicester
Tim Streather
Saracens back on BBC Radio London
That was brutally efficient. It was a great delivery from Jamie George and the boys drive over.
Saracens 24-3 Leicester
Saracens win the turnover through older brother Mako Vunipola, Owen Farrell kicks to the corner and the machine rolls on.
Saracens' forward pack with a simple drive over the line, Billy Vunipola touches down and Tigers are dealt an early second-half blow.
Saracens 17-3 Leicester
We're back.
Owen Williams gets the second half under way.
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It was billed as the clash of the giants, and Saracens are crushing their opponents so far.
The home side scored early through winger Chris Wyles and Sean Maitland added a second as Farrell came up with a near perfect kicking display.
Leicester got on the scoreboard through Owen Williams but Saracens suffocated their attacks and forced them into sloppy handling errors.
Tigers have 40 minutes to wrestle back control of this one...
Harlequins 7-7 Worcester
Meanwhile, the first-half ends with the sides all square at The Stoop.
HT: Saracens 17-3 Leicester
George Chuter
Former Saracens, Leicester and England hooker on BBC Radio Leicester
Saracens have been far, far more clinical. That's the difference in the teams today - Leicester have spurned a couple of chances. Saracens have taken their's.
Saracens 17-3 Leicester
Saracens are firmly in control of this one.
A couple of tries courtesy of their wingers and they have a comfortable lead over Leicester.
Tigers will need a remarkable turnaround to change the outcome in the second half.
Saracens 17-3 Leicester
Two minutes to go to the break and Owen Farrell misses a rare penalty as his effort strikes the post.
JP Pietersen take a bow.
He's just rescued his side there. Chris Wyles with a storming run down the wing and his chip ahead is collected superbly by JP Pietersen who launches the ball to safety.
But Ed Slater is penalised at the lineout and Saracens will go for goal.
Harlequins 7-7 Worcester
It remains 7-7 at the Stoop after early tries from Quins' Danny Care and then Worcester's Jackson Willison, but the hosts' Joe Marler has been sin-binned for collapsing a maul.
Owen Farrell launches an inch-perfect kick to the corner and Leicester are pinned back in their own 22.
Ben Youngs with a clearing kick but Saracens have four men in the back field and they'll launch another attack.
A rare handling error though by the champions.
Leicester with a good period of possession here and they're keeping the ball well.
But Saracens' suffocating defence forces the error once again.
Dan Cole with the knock-on after a poor pass from Ben Youngs and their hard work is undone.
Saracens aren't committing to the breakdown and Leicester just can't find the space to attack.
Ben Youngs tries a chip in behind, but it's a kick to nothing and the ball goes dead.
It could be a long afternoon for the Tigers...
Saracens 17-3 Leicester
George Chuter
Former Saracens, Leicester and England hooker on BBC Radio Leicester
It is a bit of a loose, aimless kick from Leicester and, after that, Saracens are ruthless!
Leicester are giving Saracens far too many opportunities to attack in the final third.
Saracens 17-3 Leicester
Leicester's defence beautifully exploited by the Saracens attack.
The ball is floated out to Sean Maitland on the wing, who does well to finish.The Scotland winger crashes over the line for his side's second of the afternoon.
And, without hesitation, Farrell knocks over the conversion.