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Stage four: Amiens Metropole - Rouen, 174.2km
Mathieu van der Poel wears the race leader's yellow jersey
Marc Soler is giving his all to set a tempo that his pal, Tadej Pogacar, can launch from.
Pavel Sivakov and Tim Wellens are there to support the Slovenian although Jonas Vingegaard and Remco Evenepoel are watching him like a hawk.
Remco Evenepoel is moving up through the bunch as Alpecin-Deceuninck attempt to shift UAE Team Emirates off the front.
UAE Team Emirates are indeed stretching the peloton out looking to up the ante and put pressure on Mathieu van der Poel.
That takes it toll on Julian Alaphilippe, who is struggling off the back of that bunch after puttin gin a huge shift to return after a mechanical.
Image source, EPAJulian Alaphilippe regains contact with the yellow jersey group. That is a huge ride from the Frenchman. What has he got left?
Are UAE Team Emirates looking to string this out?
Ben Healy (EF Education-EasyPost) punctures as Lenny Martinez is caught at the bottom of Cote de Bonsecours.
There is a big pile up at the back of the main bunch and British rider Oscar Onley is among those to hit the tarmac.
A very disconcerted Valentin Paret-Peintre is currently sat down on the kerb.
Lenny Martinez is really going all out as UAE Team Emirates head to the front of the main bunch.
Lenny Martinez has a dig and heads off solo at the front. Poor old Julian Alaphilippe is expecnding a lot of energy chasing the main pack.
The former world champion will aim to get back on the short, sharp descent, if he can.
Onto the Cote de Belboeuf a 1.3km rise that averages out at a 9.1% gradient.
That are riders being spat out the back of the main peloton all over the place as Julian Alaphilippe tries to weave his way through back towards the front of the race.
Jonas Abrahamsen zips through the intermediate sprint first.
Back in the main bunch Jonathan Milan comes through ahead of Biniam Girmay and Tim Merlier.
Image source, ASOOnce this intermediate sprint has passed, we've got a rollercoaster of a finale incoming.
Julian Alaphilippe has a mechanical. Horrendous timing for the Frenchman who has lost a minute on the peloton.
Surely he can't get into contention for the stage from here?
The peloton is larlgely intact with the intermediate sprint arriving in four kilometres.
However, with the chances of pulling in the escapees before then seem fairly slim. They still have north of a minute.
Kasper Asgreen takes the first KOM point of the day at the top of the Cote Jacques Anquetil.
The four up front head up the Cote Jacques Anquetil, as there is another minor coming together near the back of the main bunch and Cees Bol comes off his bike.
Sepp Kuss, Yevgeniy Fedorov and Matteo Vercher hit the deck.
Kuss, who won the Vuelta a couple of years back is a key domestique for Jonas Vingegaard.
The American climber is back on his feet sharpish mind.
Here is what's on the menu:
It's that time in the race when the directeur sportif's are getting on the radios telling their riders to get up near the front.
It's very much the calm before the storm at present but it's about 10km until we hit the first of five categorised climbs.
Image source, Getty ImagesWout van Aert suggested that he is hoping to be in the mix for the stage win when he spoke to broadcasters before we got under way.
But will we see this man in the frame?
The profile of this stage looks ideal for someone like Julian Alaphilippe, who is brilliant on descents.
Thomas Gachignard, Lenny Martinez, Jonas Abrahamsen and Kasper Asgreen are slowly being reeled in by the main bunch.
Although at present Ineos Grenadiers leader Carlos Rodriguez has dropped off the back.