Zdenek Stybar celebrated his first victory in the Tour de France after the Czech won stage six with a late solo attack on the uphill finish to Le Havre.
The break of the stage formed early but the peloton were happy to let the three man group go clear.
The break however was over with four kilometres to the line.
As the main bunch entered the final kilometre some of the main title contenders were caught up in a crash which took down Vincenzo Nibali, Nairo Quintana, and the current race leader Tony Martin.
Germany’s Martin quickly held his shoulder and it was later announced he had fractured his collarbone.
Unaware of the chaos behind Quick Step’s Stybar – a three time cyclo-cross world champion – jumped clear on the climb to the finish line in the Upper Normandy region to take the win.
It was a bittersweet day for the QuickStep team as injured teammate Martin crossed the line with the help of the rest of his outfit.
Although he maintained his race lead a few hours after the race had finished it was announced Martin has withdrawn.
2013 champion Chris Froome was second overall at 12 seconds but is now bumped up to top spot.
Friday’s 190.5km seventh stage takes the peloton over the rolling countryside from Livarot to Fougeres and is perfectly set up for a high-speed sprint finish.