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ROUBAIX, FRANCE - APRIL 08: Tom Boonen of Belgium and Quick Step Omega Pharma celebrates winning the 2012 Paris Roubaix cycle race from Compiegne to Roubaix on April 8, 2012 in Paris, France. The 110th edition of the race is 257km long with 51.5km of cobbles spread over 27 sections. (Photo by Bryn Lennon/Getty Images)

ROUBAIX, FRANCE - APRIL 08:  Tom Boonen of Belgium and Quick Step Omega Pharma celebrates winning the 2012 Paris Roubaix cycle race from Compiegne to Roubaix on April 8, 2012 in Paris, France. The 110th edition of the race is 257km long with 51.5km of cobbles spread over 27 sections.  (Photo by Bryn Lennon/Getty Images)

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ROUBAIX, FRANCE - APRIL 08: Tom Boonen of Belgium and Quick Step Omega Pharma rides over the cobbles on his way to winning the 2012 Paris Roubaix cycle race from Compiegne to Roubaix on April 8, 2012 in Paris, France. The 110th edition of the race is 257km long with 51.5km of cobbles spread over 27 sections. (Photo by Bryn Lennon/Getty Images)

ROUBAIX, FRANCE - APRIL 08:  Tom Boonen of Belgium and Quick Step Omega Pharma rides over the cobbles on his way to winning the 2012 Paris Roubaix cycle race from Compiegne to Roubaix on April 8, 2012 in Paris, France. The 110th edition of the race is 257km long with 51.5km of cobbles spread over 27 sections.  (Photo by Bryn Lennon/Getty Images)

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ROUBAIX, FRANCE - APRIL 08: Tom Boonen of Belgium and Quick Step Omega Pharma rides over the cobbles on his way to winning the 2012 Paris Roubaix cycle race from Compiegne to Roubaix on April 8, 2012 in Roubaix, France. The 110th edition of the race is 257km long with 51.5km of cobbles spread over 27 sections. (Photo by Bryn Lennon/Getty Images)

ROUBAIX, FRANCE - APRIL 08:  Tom Boonen of Belgium and Quick Step Omega Pharma rides over the cobbles on his way to winning the 2012 Paris Roubaix cycle race from Compiegne to Roubaix on April 8, 2012 in Roubaix, France. The 110th edition of the race is 257km long with 51.5km of cobbles spread over 27 sections.  (Photo by Bryn Lennon/Getty Images)

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ROUBAIX, FRANCE - APRIL 10: Mathew Hayman of Australia and Orica-GreenEdge crosses the finish line ahead of Tom Boonen of Belgium and Etixx - Quick-Step to win the 2016 Paris - Roubaix cycle race from Compiegne to Roubaix on April 10, 2016 in Roubaix, France. (Photo by Bryn Lennon/Getty Images)

ROUBAIX, FRANCE - APRIL 10:  Mathew Hayman of Australia and Orica-GreenEdge crosses the finish line ahead of Tom Boonen of Belgium and Etixx - Quick-Step to win the 2016 Paris - Roubaix cycle race from Compiegne to Roubaix on April 10, 2016 in Roubaix, France.  (Photo by Bryn Lennon/Getty Images)