Rotterdam 6 Day Cycling

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Joop Zijlaard of Netherlands, a pacesetter for track cycling retired... News PhotoAhoy Center Rotterdam,Bicycle,Competition,Cycling,Engine,Netherlands,Retirement,Rotterdam,Six Days Race,Sport,Sports Race,Stadium,Track Cycling,VerticalPhotographer Collection: Getty Images Sport 2013 Getty ImagesROTTERDAM, NETHERLANDS - JANUARY 05: Joop Zijlaard of Netherlands, a pacesetter for track cycling retired and competes in his last race during the Rotterdam 6 Day Cycling at Ahoy Rotterdam on January 4, 2013 in Rotterdam, Netherlands. (Photo by Dean Mouhtaropoulos/Getty Images)