Postpublished at 160km to go
Jonathan Milan sits up as none of the chasers managed to join him and give him support, so he's back with the peloton.
182.6km mountain stage from Pau to summit finish at Luchon-Superbagneres - stage guide
Thymen Arensman wins first stage, ahead of Tadej Pogacar and Jonas Vingegaard
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Written by Ben Collins & Josh Lobley
Jonathan Milan sits up as none of the chasers managed to join him and give him support, so he's back with the peloton.
Bahrain Victorious react but Jonathan Milan remains out at the front, 18 seconds clear.
Tadej Pogacar can't wear two jerseys at the same time - although he may want an extra later by the time they get up into the mountains - so Lenny Martinez is wearing the polka-dot jersey today.
The French youngster is second in the battle to be named King of the Mountains with 27 points - 10 behind Pogacar - and aims to close the gap later on.
"The aim is to be in the breakaway and get as many points as possible for the polka-dot jersey," said the Bahrain Victorious rider.
Jonathan Milan still holds the green jersey as leader of the points classification.
He's just attacked but has no support from his team-mates. The Italian then gets on to the team radio and say "guys, what do I do now?"
He'll be keen to stay near the front with the intermediate sprint coming up at the 70km mark.
There's no break yet, with the peloton motoring along, and in the melee Clement Berthet even took a tumble.
The Decathlon AG2R La Mondiale rider is with the race doctor after a crash, leaving him with some holes on his shorts.
Quinn Simmons has been a busy boy on this year's Tour and Lidl-Trek's American rider attacked as soon as the flag dropped today.
Julain Alaphilippe and his Tudor team-mate Marius Mayrhofer then tried to force a break.
After two hot days in the Pyrenees, when the temperature reached the mid-30s, it has dropped to about 20C in Pau and there has finally been some rain on this year's Tour.
It's currently overcast and former Tour rider Romain Bardet has just been chatting to TNT Sports, saying it could be "a bit grim" up in the mountains, once the riders are done with this relatively flat 70km start to today's stage.
Bryan Coquard completed yesterday's time trial knowing that it would be his last action in this year's Tour.
The Cofifids rider suffered a hand injury earlier this week and now requires surgery.
The Frenchman is the 14th rider to abandon this year's race, meaning 170 lined up at today's start in Pau.
Mountains, 182.6km, Pau to Luchon-Superbagneres
A classic and mouth-watering mountain stage in the Pyrenees awaits at the end of week two.
Nearly 5,000m of elevation gain is packed into climbs up the mighty hors-categorie Tourmalet followed by the Col d'Aspin and Col de Peyresourde.
On a day when the GC riders will be need to be at their very best, the strongest climbers will have their focus on the fight for the King of the Mountains jersey and hope to contest the stage on the pull up to the ski resort of Luchon-Superbagneres.
The gruelling 12.4km slog at 7.3%, which rises up to 10% in a couple of sections, should give Tadej Pogacar's rivals a chance to put pressure on the race leader.
And welcome back to BBC Sport's live text coverage of this year's Tour de France.
Reigning champion Tadej Pogacar extended his lead with another dominant victory on yesterday's mountain time trial.
That took his tally for Tour stage wins to 21 and made it two in two days. Can the Slovenian superstar make it a treble on today's gruelling mountain stage?