CCTV footage captured moment shopkeeper clashes with armed raider . Mohammad ##mad Akhtar was stabbed as he tackled the knife - throwing robber . Hooded attackers targeted the Premier Stores shop in derby , Manchester . Teenage thug escaped empty shop after being chased out of town .
CCTV footage captured moment shopkeeper grappled with armed raider . Mohammad Ali Akhtar was stabbed as he tackled the knife-wielding robber . Hooded thief targeted the Premier Stores shop in Flixton , Manchester . Teenage thug escaped empty handed after being chased out of store .