Marquee names are battling in the opening stages of the Vuelta a España, delivering on the promise of the season's most exciting grand tour
The Dutch rider underwent surgery to correct a heart problem last month
The Dutch rider has suffered from an irregular heartbeat during bike races for years
The Belkin rider failed to finish last week's Tour of the Basque Country
The Dutchman will be part of a 1-2 punch with Belkin teammate Bauke Mollema in France next summer
The Omega Pharma-Quick Step rider has won the last two editions of the Tour of Beijing, which started in 2011
The pair was among several riders to crash and/or abandon the worlds road race in Florence
Sagan finished 10th two days earlier in the Grand Prix Cycliste de Québec
Heading into GP Montréal, some riders were looking for a second chance on the climber-friendly course.
For one rider, a victory helped salvaged a disappointing season. For another, standing on the podium was little consolation.