The Pilgrim Street shipping container venue says the man was injured on Sunday night after falling over the balcony.
After plummeting to the ground, onlookers rush to film the injured male on their phones.
Former Sunderland AFC star Luke Molyneux tweeted the shocking clip on Sunday night, alongside the caption: “Come to the Stack to have a chilled night with the boys until…”
Management at the Pilgrim Street venue have now criticised the stunt.
Source: See man fall from STACK balcony after trying to do handstand – Chronicle Live