Gavazzi must really love coke! That's the third time including a bust as an amateur.It's been a while since the UCI list has been mentioned, however they have recently updated the provisional suspension list, and there's two Continental riders listed - Adria Mobil's Kristjan Fayt for EPO and Mattia Gavazzi for cocaine (again), having previously been suspended in 2010 - he made his comeback in the Tour de San Luis in 2013
http://www.uci.ch/mm/Document/News/CleanSport/17/32/53/20160411ProvisionalSuspensionEN_English.pdf