Career
Born in Santa Margherita of Liguria region, Beretta started his career at the city of Genoa, the capital of Liguria for University College Sampdoria. In 2012 he left the reserve team for Lega Pro Prima Divisione club Portogruaro, along with Edoardo Blondett, Andrea Magrassi, Alessandro Martinelli, Andrea Tozzo and Giuseppe Zampano in temporary deal, on 2 August 2012. On 31 January 2013 Beretta left for fellow third division club Virtus Entella.
On 13 July 2013 Beretta remained in the third division for Paganese.
On 28 January 2014 he was signed by San Marino with option to renew the loan. The Sanmarinese club finished as the second from the bottom of Group A. However due to the merger of the two divisions of Lega Pro (ex–Serie C), no teams would be relegated from Lega Pro Prima Divisione to Serie Doctorate in 2014, except Nocerina due to sports fraud.
On 12 July 2014 he was released by Sampdoria. On 6 October 2014 he was signed by Pisa.
