Valter Birsa fired Chievo to a 2-1 Serie A victory at Torino.The beleaguered hosts, who have now lost four games on the spin, took the lead through midfielder Marco Benassi on 19 minutes, but the Flying Donkeys drew level shortly after the half-hour mark.Bruno Peres' unfortunate own goal - the Brazilian deflected Roberto Inglese's pass beyond Toro goalkeeper Daniele Padelli - meant the match was tied at half-time.Birsa struck the winner from the penalty spot in the 72nd minute. After Danilo Avelar fouled Lucas Castro in the Torino box, the former AC Milan winger did the honours.