The breakaway is caught.

Absolute disaster for Jumbo Visma. Tony Martin has dropped back to help his team leader Primoz Roglic.

The Slovenian did not get back to his feet too quickly but is now going hell for leather. What drama.

Primoz Roglic is back on his bike but he's got a fair old chunk of time to make up with the peloton going full gas.

This is damage limitation stuff now. He could ship over a minute here.

Another rider goes down. Crikey it's Primoz Roglic.

Ouch!published at 11km to go

11km to go

Valentin Madouas hits the deck. There's a suggestion on the Tour radio that Mark Cavendish got caught up in that.

Maxime Chevalier pops in the breakaway and gets swallowed by the peloton.

A clutch of DSM riders push themselves to the front on the narrow winding roads round Pontivy. There'll all be working for their sprinter Cees Bol.

Just signs of a grimace from Kasper Asgreen on the front. Barely a flicker of emotion from Wout van Aert, to his left.

There are a sea of riders in front of Mark Cavendish at the moment.

The Briton is going to have to hope that his lead-out man Michael Morkov has got this under control.

Steady chaps. Julian Alaphilippe takes a small detour on to the grass as the riders jockey for position.

He's fine but it's just a little warning of the things that can go wrong, with a slight miscalculation at full gas.

Not great news for the four-man break. Wout van Aert and Kasper Asgreen are pulling on the front of the main bunch.

The lead is tumbling.

The break is down to 55 seconds. The peloton are just slowly clawing back that time.

Mark Cavendish, Michael Matthews, Mathieu van der Poel and Peter Sagan are all ready and waiting.

Will Van der Poel fancy mixing it with the pure sprinters? Wout van Aert said earlier that he would not be going for personal glory today.

Trek-Segafredo's Mads Pedersen and Jasper Stuyven take their places near the front.

Pedersen has got more strings to his bow than just being a pure sprinter, not to say he won't fancy himself as a speedster.

A mechanical for Cofidis' French sprinter Christophe Laporte, who drops off the back of the main bunch to await his team car.

Far from ideal timing.

Image source, Getty Images

The break are ploughing on. I was expecting their lead to tumble but it's actually widened out a tad to one minute and 40 seconds.

Still not too concerning for the peloton though Tim Declerq is having a word with the Lotto Soudal boys about closing it up as quickly as possible.

Jelle Wallays crests the Cote Plumeliau first to take the one KOM point on offer.

The peloton are just snaking up towards the top.

Tim Declercq, heads to the front of the peloton. The Belgian has got a huge engine and will be winding things up for his Deceuninck-Quick-Step team-mates, and a certain Mark Cavendish, shortly.

The leading group have spent much of the last couple of hours with a two-minute advantage but that's down to one minute and 10 seconds.

That'll go in no time at all when the sprint trains form.

Final hour of racing incoming.

The four-man breakaway and the peloton are under 45km from the finish.

As it stands Julian Alaphilippe is still out in front in the green jersey competition.

But with 50 points available to the winner of stage three, Caleb Ewan (37), Peter Sagan and Mark Cavendish (24 points each) and Arnaud Démare (22) are among a collection of the top sprinters who could take it later on.