Career
Ternana
Born in Perugia, Umbria, Scappini started his career at Umbrian side Ternana. He made his professional debut in February 2007 and made a total of 21 matches at Serie C1. Sampdoria
On 28 January 2008, he left for Serie A side Sampdoria in a temporary deal.
He scored a goal for Sampdoria Primavera Under-20 Team at Torneo di Viareggio 2008 on 2 February.
In July 2008, Sampdoria decided to buy him in co-ownership deal for €150,000 and loaned back to Ternana of Lega Pro Prima Divisione (ex-Serie C1). Ravenna
In July 2009, he was sent to Prima Divisione side Ravenna in another co-ownership deal for €120,000.
He scored 6 goals, (1 at 2009-2010 Coppa Italia), became the second highest goalscorer of the team ahead Luca Gerbino Polo, behind Federico Piovaccari. He successively joined Alessandria for the new 2010-2011 season.
On 18 September 2009, he was involved in the accident which resulted in the death of his teammate Brian Filipi: the two players were hit by a car while walking in a street in Cervia.
Return to Sampdoria
On 24 June 2011, Sampdoria bought back Scappini from Ravenna for €200,000 in a 4-year contract. He was transferred to Sorrento, Pisa, Grosseto and Castel Rigone in temporary deals during his entire Sampdoria career. Savona
On 22 August 2014 he was signed by Savona F.B.C. for free in a 1-year contract.