Matteo Trentin won stage 17 of the Tour de France from the breakaway in Gap as Mitchelton-Scott collected their fourth victory of the race.

The European champion was part of a 33-man group which went up the road early in the 200km stage from Pont du Gard, and he broke clear on the approach to the final climb as the group began to splinter.

Trentin crested the Col de la Sentinelle with a 25-second advantage over Deceuninck-Quick Step's Kasper Asgreen and was able to extend that lead on the long descent into town to win by 36 seconds.

It was a third career Tour stage win for the Italian, and continued the most successful Tour in Mitchelton-Scott's history.

There were no changes at the top of the general classification, in which Deceuninck-Quick Step's Julian Alaphilippe leads defending champion Geraint Thomas of Team Ineos by 95 seconds.

Alaphilippe is widely expected to fall away in the Alps, where a fascinating battle is anticipated, with only 39 seconds separating Thomas in second from Emanuel Buchmann in sixth place.

Thibaut Pinot, who was the strongest climber in the Pyrenees last weekend, sits fourth, 15 seconds behind Thomas.

Nicolas Roche was part of the breakaway group and finished 16th in the stage, 27th overall, just under 41 minutes behind the leader.

Dan Martin was further down the field in 61st and is now 14th overall, 11 minutes, 39 seconds behind the leader.