Hello and welcome to live coverage of the big one - the final day in the mountains and Geraint Thomas' day with destiny - the 200.5km Pyrenean stage 19 from Lourdes to Lauruns.

Here's how Roglic won and Thomas put one step on the yellow step of the podium in Paris. Thanks for joining me today and see you tomorrow for the ITT.

And the new general classification, which looks pretty good for Geraint Thomas.

The top 10 in today's stage.

So, a bitter-sweet day for Sky, who see Thomas strengthen his grip on yellow but with that 29-second swing for Roglic, he will jump ahead of Froome onto the virtual podium.

Geraint Thomas wins the sprint for second place to add some more bonus seconds and extend his lead in the general classification. The Welshman pipped Romain Bardet there as the chasers came home 19 seconds down on the winner, Roglic.

Victory for Primoz Roglic (LottoNL-Jumbo) who time-trialled himself away from his rivals to secure the second Tour stage win of his career.

Under the kite he goes and this will be a quite superb victory for Roglic.

Majka tries to lead the chase but shakes his head - the gap is only growing.

Lone leader Primoz Roglic has completed the descent and is entering Laruns. He goes under the 2km banner with 17 seconds to play with...

It's now Froome who leads the chase - and well he might. As things stand, the Briton will drop to fourth on GC tonight.

Roglic's gap extents and he could well be riding to victory here... and a place on the podium.

Roglic has about 100m advantage on this descent and it's Dumoulin who's doing all the chasing.

10km to go. Who's going to win this one? Thomas is such a fast finisher and could make it three today...

It's Roglic, Dumoulin, Thomas, Bardet and Landa in that order on this descent - with speeds hitting 90km/h at times.

Zakarin is not the only one who has been tailed off - Kruijswijk, too, is having trouble keeping up the the others. They both crashed badly on that fateful stage in the Giro two years ago - off the top of the Agnello, if you remember.

Majka has already been caught and it's Roglic who leads the yellow jersey group, with Zakarin - as expected - off the back, and almost on the floor. He locks up a back wheel and almost goes flying on a sweeping bend.

This descent is twisting, narrow and often quite treacherous - and with the mist and clouds, that's made it all the more challenging.

The two chasing groups pretty much join back together over the summit with the exception of Froome, who is about 10 metres off the pace. But he'll make that up on the descent, which he does very well - provided he can get past Zakarin, the trouble man.

Gritting his teeth, it's Majka who rides solo towards the summit - but his gap is only 10 seconds and he has the chasers breathing down his neck. Over the top he goes and now it's all about who has the biggest balls and best bike-handling skills.