Terrifying incident involving cricket legend Stuart MacGill ... who was allegedly kidnapped and assaulted at gunpoint in Australia last month -- and cops have now arrested his girlfriend's brother over the incident.
50-year-old MacGill was reportedly confronted by 46-year-old Marino Sotiropoulos, the brother of MacGill's GF, Maria O’Meagher, on April 14 near Sydney ... according to the Sydney Morning Herald.
According to the report, while interacting with Sotiropoulos, MacGill was then approached by two other men ... who allegedly forced him into a car and drove him an hour outside of the city.