Postpublished at 68 mins
Leinster 17-22 Saracens
Trojan work from Michael Rhodes as he wraps up Leinster's attempted driven maul and secures the turnover.
Massive from the Saracen.
Twelve minutes to go.
Kick-off: 15:00 BST
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Leinster on 25-match winning run
Winners to face either Clermont Auvergne or Racing 92 in the last four.
Mike Henson
Leinster 17-22 Saracens
Trojan work from Michael Rhodes as he wraps up Leinster's attempted driven maul and secures the turnover.
Massive from the Saracen.
Twelve minutes to go.
Leinster 17-22 Saracens
Ross Bryne is on for Johnny Sexton, who is limping to the touchline.
Rory O'Loughlin is moving into 10 for Leinster.
Leinster 17-22 Saracens
Richard Wigglesworth juggles as he chases back to field a kick. Robbie Henshaw is on him in a flash.
He forces the Saracens scrum-half into touch inside his own 22m.
Field position and ball for Leinster...
Leinster 17-22 Saracens
A scrappy attempt to collect the kick-off from Leinster.
A spill forward from Saracens as they look to take advantage.
There is a lot of lactic out there. There are mistakes and points in the offing...
Who is going to get them?
Leinster 17-22 Saracens
Paul Grayson
Former England fly-half on BBC Radio 5 Live Sports Extra
These are the fine margins. Leinster take the ball to the line through Robbie Henshaw and Jordan Larmour hits the 'go' button in the open field.
It was a clean kill from the set piece and that's exactly what they're all about.
Jordan Larmour (con Sexton)
Leinster look set to drive the maul. Instead they spin wide. To devastating effect.
Jordan Larmour hits a lovely angle that takes him motoring outside a narrow Alex Lewington and into the end zone.
Another two from Sexton and we are in for a hum-dinging final 18 minutes or so...
Leinster 10-22 Saracens
Michael Rhodes' attempt to tackle was an honest, if tired, one. His arm has slipped high onto Johnny Sexton's neck in the collision.
A penalty and nothing more decide the officials. About right.
Sexton kicks down into the Sarries 22m.
Gibson-Park on for McGrath at nine for Leinster.
Leinster 10-22 Saracens
Paul Grayson
Former England fly-half on BBC Radio 5 Live Sports Extra
Leinster were desperately trying to keep hold of the ball and force Saracens to concede a penalty.
But it was sensational defence by Sarries.
Leinster 10-22 Saracens
Johnny Sexton is down. Did he cop a high hit from Michael Rhodes? The TV official might have have a second look...
Leinster 10-22 Saracens
A brutal bit of midfield trench warfare. Twenty-odd phases over a similar number of inches. Both sides throwing the kitchen sink and all the white goods into the contest...
Leinster 10-22 Saracens
Great work from replacement Ryan Baird!
The Leinster second row dislodges the ball out of Billy Vunipola's grasp to turn over.
It was the classic one-arm rip - like he was starting up a motorboat.
Leinster 10-22 Saracens
Saracens with the line-out just outside the Leinster 22m.
Jamie George finds Michael Rhodes with a precise dart to the back...
Billy Vunipola with a formidable rumble...
Leinster 10-22 Saracens
More scrum-time issues for Leinster.
Andrew Porter is pinged for an early engage. Or was it knees on the floor? Either way Mako Vunipola is winning their wrestle.
Elliot Daly will clear his lines.
Leinster 10-22 Saracens
Ryan Baird is wrapped up like a Christmas present as he takes the ball into contact and Maro Itoje and Michael Rhodes tentacles envelope him.
Turnover to Saracens.
That will sap some of the steam out of Leinster and some more time off the clock...
Leinster 10-22 Saracens
Jackson Wray is penalised for getting a little too handsy on the floor. Leinster kick the penalty down to within 15m of the Sarries' line.
Josh van der Flier is on for Will Connors. Could Leinster's depth prove key at the death?
Leinster 10-22 Saracens
If Leinster pull this out of the fire, Johnny Sexton can stop telling the stories of the 2011 final comeback against Northampton.
He will have a new set of tales.
Leinster 10-22 Saracens
Paul Grayson
Former England fly-half on BBC Radio 5 Live Sports Extra
Suddenly it's 22-10 and Leinster will start to feel a little bit better about things.
Andrew Porter (con Sexton)
Try stands!
Johnny Sexton wastes barely a breath before kicking the extras.
This game is on.
Leinster 3-22 Saracens
It is difficult to see amid the limbs...the on-field decision is try....
Leinster 3-22 Saracens
Connors up to within five metres.
Conon even closer.
Has Andrew Porter made it over? The TV official will decide...