 Complete the following phrase:  On 2 May 2015, Barzagli helped Juventus keep a clean sheet in a 10 away victory over Sampdoria, which allowed the Turin club to clinch the Serie A title for a fourth consecutive season. On 20 May, he featured in Juventuss 21 victory over Lazio in the 2015 Coppa Italia Final, as Juventus completed a domestic double that season; this was also the clubs record tenth Coppa Italia title. On 6 June, Barzagli started for Juventus in the 