Primoz Roglic is off and will soon be followed by British youngster Oscar Onley.

Simon Yates crosses 3mins 18secs slower than Luke Plapp.

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Simon Yates is currently on the course and more than two minutes adrift approaching the finish.

His Visma team-mates Matteo Jorgenson goes five seconds quicker than Luke Plapp at the first time-check.

Adam Yates crosses the line 17 seconds slower than Luke Plapp to go second fastest. The British climber lost 13secs to the Australian in the last 3.3 km.

Meanwhile, back in Loudenvielle, Ireland's Ben Healy sets off.

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Great knowledge Mike!!

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Luke Plapp, who is still in the hotseat, has said: "The last minute was painful, but all in all, I enjoyed the race, nevertheless.

"I think the winning time will be 1min or 1min 30secs faster than mine, as the GC guys can push 20 watts more than I do. But I wanted to represent the colours [of the Australian champion's jersey] well and I’m happy."

Simon Yates has now got going while, further up the road, his twin brother Adam is five seconds down on Luke Plapp at the second intermediate.

Here's a reminder of the stages coming up. After today's time trial is another testing mountain stage culminating in the Tour's second summit finish at Superbagneres.

Then there's a hilly stage before the second rest day of this year's Tour, giving the riders the chance to prepare for a gruelling final week in the Alps.

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Jonas Vingegaard looked exhausted as he reached the finish line yesterday, more than two minutes after Tadej Pogacar, and the Danish rider now trails by 3mins 31secs.

After the stage, Visma-Lease a Bike's sports director Grischa Niermann called their two-time Tour winner the "best of the rest".

"It was a very hard stage and in the end, the best rider won," he added. "Congrats to Tadej and UAE. They showed who's the strongest rider here.

"Tomorrow's a new day and we will keep fighting, but in the GC, of course, there is now a big gap."

Harry Sweeny comes in 55 seconds slower than Luke Plapp to nudge Julian Alaphilippe out of the top three.

Lenny Martinez remains in second.

We're now into the top 30 of the GC standings, and UAE's British rider Adam Yates is the latest to set off.

Wout van Aert has won two time trials on the Tour but he won't be adding to that tally this year.

The versatile Belgian star was never in contention, although he actually improved over the third and final sector to finish 3mins 5secs slower than Luke Plapp - 21st quickest so far.

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Tadej Pogacar's winning margin yesterday was the biggest of his 20 stage wins and he now leads the race by 3mins 31secs.

Will Jonas Vingegaard be able to close that gap or is Pogacar already destined for a fourth Tour win?

Let us know your thoughts via the usual channels listed above... or hit thumbs up if you think the race is already over, thumbs down if it's still alive.

Mathieu van der Poel has had an eventful race, claiming his second stage win and wearing the yellow jersey.

The versatile Dutch star is now third in the battle for the green jersey - behind Jonathan Milan and Tadej Pogacar - and has just left the start ramp.

On his 14th and final Tour, Geraint Thomas' final time trial sees the 2018 Tour winner cross the line 3mins 30secs slower than Luke Plapp.

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The clock goes red as Bruno Armirail climbs to the line.

He eventually crosses 74 seconds slower than Luke Plapp, which puts him behind Julian Alaphilippe in fourth.

Bruno Armirail is third quickest at the second and final time-check, 3.3km from the line, 21 seconds slower than Luke Plapp.

Geraint Thomas is almost two minutes adrift.

Rumour has it that Tadej Pogacar has opted for an aero road bike, with no paint!

That's the kind of measures teams are taking to make their bike as light and as quick as possible.

Jonas Vingegaard, meanwhile, is going for a matt black time-trial bike, while his Visma team-mates are on road bikes.