A shopkeeper was allegedly extorted, threatened, firebombed, bashed and eventually forced to sell his Bankstown juice bar for a pittance because a gang of Sunni Muslims suspected he supported Syrian President Bashar al-Assad.

In a glimpse of how far tensions in Syria can affect life more than 14,000 kilometres away, Ali Issawi was subjected to a two-week campaign of threats and violence when his business was placed on a ''boycott tyranny'' list on Facebook.

Sold: The former Juicylicious shop remains a juice bar but with a new name. Credit:Wolter Peeters

Court documents reveal the steps a group of men from the radical Al-Risalah Islamic bookstore in Bankstown took to ''protect their faith'' and support the rebel uprising against President Assad.

A month after spending almost $80,000 to open Juicylicious on Restwell Street in February last year, Mr Issawi discovered his business and dozens of others had been placed on a boycott list because they were owned by Shiite Muslims who supposedly supported the Assad regime.