Sagan, the three-time reigning world champion, came up short in the opening stage's sprint when he crossed second behind Fernando Gaviria, who won on his Tour debut.
"I'm feeling good. It's obviously never much fun crashing", he said in a lighthearted moment on the team bus.
"Team EF-Drapac managed to cut their losses for Rigoberto Uran - their powerful TTT team stopping the clock in 39'21" - while Team Sunweb also ensured they lost very little over the potentially tricky parcours.
"The only thing I can really understand from it was that Chris didn't even go to the adverse analytical finding, it didn't even get to that stage, he was asked to explain himself which he got given due process to do and he was cleared by the people that run the sport and doping agency and that's all we really know".
Gaviria was immediately congratulated by Colombia's cycling-mad president Juan Manuel Santos, who visited the Tour de France previous year and who sent his best wishes via Twitter.
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The four boys rescued Sunday can eat normal food and walk around, and the four pulled out Monday were eating soft food. It could be at least seven days before they can be released from the hospital, Jedsada told a news conference.
Van Avermaet's teammate Tejay van Garderen finished on the same time to take second place overall with Sky's Geraint Thomas in third.
Squad leaders traded turns on the front of the team "trains", with the ability to constantly maintain a fast pace the decisive factor over a challenging - if not highly technical - route featuring a few minor hills.
Richard Moore, Lionel Birnie and François Thomazeau discuss the stage and Peter Sagan's first Tour stage win since his disqualification from last year's race.
Smith was focussed on winning the climber's polka dot jersey, and once he had secured that after the only classified climb came early in the stage, he was called back to the bunch to help his team.
But Gaviria was involved in a group pileup inside the three-kilometre zone that neutralizes the impact of accidents and could do nothing to stop Sagan from claiming a six-second overall lead.
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Petersburg, Sochi, Kazan, Saransk, Kaliningrad, Volgograd, Rostov-on-Don, Nizhny Novgorod, Yekaterinburg and Samara. The country selected 11 host cities to be the venues for the matches of the 2018 World Cup and they are Moscow, St.
The Tour remains in western France for Stage 3 on Monday with a 35.5-kilometre team time trial that starts and finishes in Cholet. "It wasn't ideal to throw 51 seconds away but we have taken some good time back on some of the other GC (general classification) guys today".
The veteran French rider dug in for a long day, no doubt encouraged by his sponsor Vendée, the region through which the stage was riding.
The other members of BMC are Patrick Bevin, Damiano Caruso, Simon Gerrans, Stefan Kung and Michael Schar. "To win the stage with a team like we have here, and especially with the passing of Andy Rihs, is special", Porte said. The Frenchman got warmly welcomed by the people on the sides of the road and got an advantage of more than four minutes with the peloton. "It just shows that we are here, too, and let's get it on".
Van Avermaet also wore the yellow jersey for three days on the 2016 Tour.
Tonight's fourth stage is a 195-km flat ride from La Baule to Sarzeau.
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Some 30,000 people will gather in London's Hyde Park to watch the game, with the Lightning Seeds set to perform Three Lions before kick-off.
The only individual time trial of the race comes in the penultimate stage, over a 31-kilometer route from Saint-Pee-sur-Nivelle to Espelette in the Basque country.