4:45 PM PT -- TMZ Sports has learned that Greg Robinson was busted with 156.9 pounds of marijuana, according to law enforcement docs. Robinson -- who was also with 26-year-old ex-NFL player Quan Bray -- was stopped around 7:15 PM on Monday evening after a Border Patrol drug-sniffing dog alerted to the rear cargo door of their 2020 Chevy Tahoe. According to the docs, Robinson and Bray were NOT reentering the country from Mexico -- rather they were trying to get from Los Angeles to Louisiana and hit the checkpoint on the way. The agents performed a follow-up search and...