Nicola Rizzoli is active in the Italian Serie A since 2002. In 2007 he received his FIFA badge and in August of that year he started with a CL qualifier. After only a year and a half he took charge of a Champions League group stage match. Rizzoli was promoted to the elite category at the beginning of season 2009-2010.
Just to compare: it took Roberto Rosetti 3 years to get to the Champions League.
Niccola Rizzoli must know a few important people (Collina?): In May 2010 he was awarded the Europa League final.
Rizzoli is selected for EURO 2012
Nicola appears in the 2013 UEFA Champions League and is even granted the honour of officiating the final. You can read a conversation with him about the occasion here.
Nicola Rizzoli was selected for the WorldCup 2014 in Brazil in which he officiated four matches. He achieved the highest possible honor when refereeing the worldcup final.
Nicola Rizzoli has been been appointed to take charge of EURO 2016.