Peter Sagan victorious on stage two of Tour de Suisse

Sagan won in a sprint finish from Max Richeze (Etixx-QuickStep), Orica-GreenEdge duo Michael Matthews and Magnus Cort Nielsen, and Lotto Soudal's Roelandts.

While Sagan moved to the front inside the final 100 metres to take the win, a three-second time split between the leading quintet and the rest of the pack cost Cancellara the yellow jersey he won with victory in Saturday's prologue.

Roelandts was on the right side of the split and now leads the race by one second from Cancellara, with Luke Durbridge of Orica-GreenEdge six seconds off the lead and Tinkoff's Sagan sat in fourth, 10 seconds back.

It was harsh on Trek-Segafredo's Cancellara, who had beaten Roelandts to the line in the intermediate sprint 12km from home to take a three-second bonus which had looked to secure yellow for another day in his final home race before retirement at the end of the season.

The second stage of the race saw the riders tackle four laps of a circuit around Baar totalling 187.5km.

After an early break animated a rainy day the pack were all back together again going into the final 30km, but the wet conditions led to crashes which disrupted the peloton.

Cannondale's general classification hopeful Andrew Talansky was among those caught up, along with Etixx-QuickStep's sprinter Fernando Gaviria and Durbridge.

They had got themselves back on to the peloton with 10km to go and it was set up for a straightforward sprint finish.

That should have meant Cancellara's yellow jersey was safe, particularly after he took the intermediate sprint bonus, but as the pack rounded the penultimate corner, Gaviria - having got back into position for the sprint - seemed to sit up and in doing so he lost a wheel and split the peloton.