Como seal Serie A return after 21-year absence
They will be joined in the top flight next season by Serie B champions Parma, who made sure of their promotion at the start of the month.
Como suffered multiple bankruptcies and tumbled down the pyramid after being relegated from Serie A little over two decades ago.
The club from Lombardy have former Arsenal teammates Cesc Fabregas and Thierry Henry as minority shareholders, with ex-Chelsea midfielder Dennis Wise a board member.
Como only returned to professional football with their promotion to Serie C in 2019. But, bankrolled by Indonesian tobacco giants Djarum, they have stormed through the divisions.
The third promoted club will be decided by play-offs featuring the teams finishing between third and eighth, which include Venezia and Sampdoria.
