The Swiss rider held on through a tough final climb to battle in the stage 1 sprint in a fast finish on rain-slicked roads. He handily out-gunned Diego Ulissi (UAE Team Emirates) and Jesus Herrada (Movistar) to cross the line first.
Team Sky's Chris Froome got involved in the finish as well, claiming fifth.
Trek-Segafredo's Fabio Felline finished safely in the pack to hold on to his spot atop the overall race leader board.
To subscribe to the Cyclingnews video channel, click here.
Get The Leadout Newsletter
The latest race content, interviews, features, reviews and expert buying guides, direct to your inbox!
