Sagan emerged from Viviani’s wheel 70 metres from the finishing line to power past the Italian following a fractured sprint caused by cross winds and crash in the closing stages.
Team Sky worked hard in the last 30km of the stage to create the opportunity for a sprint as a long-term breakaway threatened to ruin the sprints’ fun on a relatively flat finish.
Six riders including Mattia Frapporti (Androni-Sidermec), Andriy Grivko (Astana), Mirco Maestri and Luca Wackermann (both Bardiani – CSF), Iuri Filosi and Kohei Uchima (Nippo-Fantini) and Alexis Gougeard (Ag2r La Mondiale) escaped in the opening stages and were closed down successfully only for Filosi to make a late counter.
But with 15km to go the peloton prevailed and brought Filosi back to ensure the 204 kilometre stage from Monterotondo Marittimo to Montaldo Di Castro would end in a sprint.
See all the reaction below from Viviani in this TeamSky.com