Alessio Manzoni

Early years

Manzoni made his senior debut for Atalanta in a Serie B match towards the end of the 2005–06 Serie B season. The game ended 1–0 to Modena. Since then, Manzoni has been on loan at both Padova and Spezia.

Parma

In February 2009, he left for Parma in temporary deal. In summer 2009 Manzoni was signed by Parma in three-year contract for €1.5 million (counter-weight Luca Cigarini transfer fee); Atalanta also retained 50% registration rights. Since January 2010 Manzoni was farmed to various clubs in Serie B and Lega Pro Prima Divisione. In June 2011 Atalanta gave up the remain half of the "card" to Parma. In July 2012 Manzoni was signed by Gubbio. That season Parma signed Daniele Bazzoffia for undisclosed fee and Mário Rui for €595,000 from Gubbio; Gubbio signed Manzoni, Pietro Baccolo, Jacopo Galimberti and Francesco Pambianchi in temporary deals, subsidized by Parma by performance bonuses (Italian: premi di valorizzazione). Eventually Gubbio received €548,000 from the loan of Manzoni, Baccolo and Galimberti.

Pavia

In November 2013 he was signed by Pavia as free agent.

Serie D and return to Serie C

After leaving Pavia, he spent the next 5 seasons in the Serie D, 4 of them at Pergolettese, which advanced back to Serie C for the 2019–20 season.