Hello and welcome to live coverage of stage 5 of the Tour de France - a flat and exposed 189.5km ride through the battlefields of the Somme from Arras to Amiens.

No change in the overall standings with Tony Martin staying 12 seconds clear of Chris Froome and 25 seconds clear of Tejay Van Garderen.

Peter Sagan was second, Cavendish third, Kristoff fourth and Boasson Hagen fifth.

What a blistering finish for Lotto-Soudal's Greipel - who will take a huge 50 points in the green jersey competition with that latest victory.

But jolly green giant Andre Greipel powers through to take his second win of the race!

Cavendish has lost his lead-out man in Renshaw... and Kristoff leads it out from Demare...

Under the flamme rouge they go... and it's Lotto-Soudal setting the pace for Greipel.

Now Giant come through now with three riders.

Tony Martin leads the pack through a tight left-hander - he has three Etixx men in his wheel, including Cavendish. This is theirs to lose.

We're now in the safe zone... Astana still heavily present on the front, tucked in besides MTN.

Etixx have power in numbers for Cavendish. Coquard is up there too. Sagan, Greipel and Demare too.

The peloton is slitting ahead of a roundabout - and those who went left (Giant-Alpecin) have missed out... Sky, Etixx and Tinkoff took the correct option and front the pack.

Sky have wrested control on the front - they want to deliver their man Froome to the 3km mark safely.

Edvald Boasso-Hagan must be back and ready because MTN-Qhubeka are readying their troops. Alexander Kristoff, who has had a very quiet race for Katusha, is there but tucked away. Giant-Alpecin are preparing their train for John Degenkolb. Etixx have a large group around Cavendish and Martin... There's Sagan too for Tinkoff.

BMC back to the front - they're not really there for the stage win (unless Greg Van Avermaet has good legs - unlikely, given his crash earlier on). They're most concerned with keeping Tejay van Garderen out of trouble. There's a headwind and many teams are trying to bring their main riders forward. Bryan Coquard, who crashed twice earlier, is there with Europcar team-mate Yohann Gene, while the green jersey of Andre Greipel looks a little isolated.

The rain has stopped, the roads are dry - but the stormy clouds still loom over Amiens on the horizon. Tinkoff-Saxo have come to the front to keep Alberto Contador out of trouble - and there's the yellow jersey of Tony Martin, in second place behind the rainbow stripes of Michal Kwiatkowski. They'll be working for Mark Cavendish today.

Thibaut Pinot has managed to rejoin the peloton after being held up in that crash. The pace has slowed again - it looks like it was all about fighting for positions ahead of a town with narrow roads, bends and street furniture.

The pace has really been cranked up on a wide downhill stretch of road. BMC, Sky and Astana jostle for positions and it's really hotting up in this front peloton, which is down to about 60 riders now.

Jean-Christophe Peraud (Ag2R-La Mondiale) was also involved in the crash. Both he and Pinot - the two riders alongside Vincenzo Nibali on the podium in Paris last year - will need to fight back now.

The pace has slowed after that crash as the held-up riders fight back on. Everyone got back on their bikes but it will just as to the nervousness - as exemplified in a roundabout, which the chasing riders take very gingerly.

That crash occured when Marco Haller of Katusha - the Australian national champion - skidded into the back of someone and then send the riders down like skittles. Matto Tossato, the oldest man in the peloton, came down, as did fellow veteran Svein Tuft. Scarponi and Kruijswijk too - plus a number of Katusha riders - and Boasson-Hagen.