Postpublished at 15:06 British Summer Time 23 July 2016
BBC Radio 5 Live
You can hear Rob Hayles and Rob Hatch describe what's left of this stage, and you can do it by clicking the audio button at the top of this page right now.
Summary
Stage 20: 146km from Megeve to Morzine
Froome holds 4min 11secs lead in yellow jersey
Froome's lead will not be challenged on Sunday's final into Paris
Romain Bardet second overall, Nairo Quintana third
Jon Izaguirre of Spain wins stage
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Postpublished at 15:06 British Summer Time 23 July 2016
get involved Get Involvedpublished at 15:04 British Summer Time 23 July 2016
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Peter Benson: Descended the Joux Plane last week in the dry - sketchy enough then. Hopefully the #TdF riders make it down safely
Postpublished at 14:57 British Summer Time 23 July 2016
38.6km to go
Stage leaders Jarlinson Pantano and Julian Alaphilippe have come across dry Tarmac on their descent and they can really go hell for leather now.
Pantano goes a bit wide on a corner, but Alaphilippe waits for the Colombian - they're going to need each other.
The peloton, 5mins 27secs adrift, is still in a much soggier part of the world.
Lovely day for itpublished at 14:55 British Summer Time 23 July 2016
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Pantano impressespublished at 14:52 British Summer Time 23 July 2016
43.3km to go
Jarlinson Pantano, already a stage winner on this Tour, has descended like a boss and left Thomas de Gendt for dead to take the stage lead.
Julian Alaphilippe joins him and the pair will help each other out on their way to the final climb.
Froome looking comfortablepublished at 14:50 British Summer Time 23 July 2016
45.6km to go
Chris Froome is tucked in around his Team Sky team-mates as they whizz down the descent in the wet. It's all looking like a straightforward day for the yellow jersey man - he'll want to keep it that way.
Astana are fronting up the peloton, which is 4mins 52secs behind the leaders.
Descent warningpublished at 14:47 British Summer Time 23 July 2016
48.5km to go
Race organisers have warned riders that this descent is a bit dodgy - its glistening with moisture and watching the bikes slalom down is uncomfortable viewing. Nobody has fallen yet though.
De Gendt reaches Col de la Ramazpublished at 14:45 British Summer Time 23 July 2016
50km to go
Thomas de Gendt, for the third time today, is the first man to the top of a climb.
Now he's tearing it down Col de Ramaz and has a 30-second lead on the group behind him.
The chasers did split momentarily, with Roman Kreuziger dropping off, but they're all back together.
De Gendt goes againpublished at 14:39 British Summer Time 23 July 2016
53.4km to go
Alexis Gougeard has been caught by the chasers and Thomas de Gendt, never afraid of doing something utterly reckless, decides to plough on by himself and is 1km away from making it three out of three on today's climbs.
He has about 12 seconds on the breakaway group.
Postpublished at 14:36 British Summer Time 23 July 2016
'I feel like I could do anything'published at 14:33 British Summer Time 23 July 2016
#GetInspired
Image caption, Geoff Whitington on his bike
Geoff Whitington was 20 stone, on crutches with type 2 diabetes and in danger of losing his foot through Charcot foot - a serious complication of diabetes.
That's when his sons decided they needed to do something, dug his bicycle out of the shed and started getting him on the move.
Find out about Geoff's amazing journey in Fixing Dad on BBC Two at 22:00 BST on Sunday, 24 July.
Mollema strugglilngpublished at 14:33 British Summer Time 23 July 2016
56.2km to go
Bauke Mollema's already distant hopes of making the podium are now just a dot on the horizon.
The Dutchman, who lost a wheelbarrow full of time yesterday after a fall to cede second place, has been spat out of the back of the peloton and is looking uncomfortable.
Postpublished at 14:31 British Summer Time 23 July 2016
56.6km to go
AG2R's mini attack dies on its backside after about 45 seconds. They do have a man leading the stage, though, with Alexis Gougeard eight seconds ahead of the breakaway.
Sky drop a manpublished at 14:29 British Summer Time 23 July 2016
57.2km to go
Image source, Getty ImagesTeam Sky's numbers around Chris Froome have diminished, as Mikel Landa drops off the peloton.
Nothing to panic about though, Froome is well protected.
Ay up, AG2R have decided to move to the front of the peloton and made everyone go quicker. Struggling to remember the last time AG2R were setting the pace.
Postpublished at 14:27 British Summer Time 23 July 2016
I think Gougeard had a puncture about 15 minutes ago. Impressive stuff.
Gougeard gets goingpublished at 14:26 British Summer Time 23 July 2016
58.1km to go
Vincenzo Nibali injects some speed at the front of the breakaway and it's Alexis Gougeard holds it together, before launching an attack of his own. The Frenchman has formed a gap.
Postpublished at 14:24 British Summer Time 23 July 2016
58.5km to go
After doing all that work for team-mate Roman Kreuziger in the lead group, Peter Sagan has been absorbed by the chase group.
Astana increase pacepublished at 14:23 British Summer Time 23 July 2016
58.9km to go
Image source, AFPTheir moment of confusion aside, Astana continue to tug along the peloton and they've dropped the gap to the breakaway to 4mins 50secs.
Team Sky sit behind the Astana riders and Chris Froome looks as calm as a duck on a drizzly day. he just needs everything to stay as it is, and the yellow jersey is in his grasp.
get involved Get Involvedpublished at 14:21 British Summer Time 23 July 2016
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Stewart Beaumont: In Morzine for TdF, my 16 yr old has cycled the Joux Plane with her friend to see them hit the top. It's pouring; so brave...
Hope everyone made it safely, Stewart!
Sagan sags, finallypublished at 14:16 British Summer Time 23 July 2016
61.5km to go
Speaking of Romain Kreuziger, he no longer has Tinkoff team-mate Peter Sagan with him in the breakaway.
The Slovak is spent, the well is dry. But it's been a selfless shift from the green jersey holder (and this year's winner).
I wonder if he has anything in the tank for the sprint in Paris tomorrow?