Cadan Murley cuts in to barge off a couple of Stormers near their 22.

Marcus Smith is isolated collecting a kick on halfway and snaffled up by a phalanx of Stormers. Not something a fly-half ever likes to endure.

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The Stormers have changed their entire front row, no surprises there as they look to wear the tiring Quins down.

He lands it from just inside the Quins half, ignoring the Mexican Wave that usually indicates that a crowd is losing interest. With an 18-point lead, they may have a point.

Marcus Smith kicks crossfield towards Joe Marchant but his flip inside doesn't go to hand.

Stormers come back at them and now Manie Libbok opts for a long-range kick at goal.

It's a double movement and it's not a try to Suleiman Hartzenberg.

Stormers run it back and they celebrate, convinced someone has touched down under a pile of bodies. The ref signals try, but we go upstairs.

Quins do well, keeping the ball right on the whitewash before Danny Care kicks to clear out of the 22.

Here we go again, and straight away Harlequins are under pressure with a lineout on their own line after Stormers kick the second half off.

There are two more last-16 ties in the Champions Cup to follow today after we're done with this Stormers-Quins contest.

Defending champions La Rochelle host Gloucester, while Leinster take on Ulster.

Both games kick off at 17:30 BST and you can follow text and radio coverage of both matches on this page later.

That was a half that started brilliantly but as it wore on became more and more scrappy, There were not many sustained passages of decent play, and with the benches set to be emptied in the second half and the warm weather, you just wonder if the Stormers will have too much for Harlequins?

They kick to the corner at a penalty, but eventually Quins concede a penalty and pass up the chance to reduce the arrears to end the first half.

Stormers lead by 10 at the interval.

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Quins take it into the red zone after 40 minutes with an excellent spell of pressure from a scrum infield, but the Stormers defence is as solid as a rock.

Harlequins force a few penalties to edge downfield before Marcus Smith kicks for the corner. Can they do the lineout-drive thing again before the break?

A chance goes begging as Quins spin it across to the left, but Marcus Smith's final pass is wild and Cadan Murley cannot reach it with the line at his mercy.

Danny Care's deft kick to the corner bounces away from Damian Willemse, and under pressure from Marcus Smith he fluffs it for a knock on to give Quins a scrum five metres out.

The game's fifth scrum actually is completed, Stormers chip to the Quins line but the mark is claimed. Marcus Smith chips it downfield before a bit of you kick, we kick until there is a pause for Wilco Louw to be seen to for treatment.

Seabelo Senatla flies down the left flank but he is stopped by a fine Northmore-Marchant pincer movement. Joe Marler makes sure Stormers don't get it back.