Who is Sarri?
Italian football expert James Horncastle
Sarri never made it as a player and, unable to make a living as a footballer, he worked as a foreign currency trader at the Banca Toscana.
He was attached to the international department, which involved business trips to Europe's financial centres, including the City of London - but the role never stoked his imagination quite like football did.
He coached part-time, hopping from one Tuscan town to another and in 2001, when foreign currency traders like him were no longer as useful to banks as Italy prepared to adopt the euro, Sarri decided to take a leap of faith and leave his well-paid, regular-hours role, for what he says is "the only job I would do for free".