By Matt Hladik Jackson State University and head football coach Deion Sanders are reportedly being sued by the organizers of the Southern Heritage Classic. Summitt Management Corporation, which runs the event, filed suit last week following Sanders’ recent comments declaring that JSU wanted to sever its contract and cancel the final two years of the game. The Southern Heritage Classic, featuring Jackson State and Tennessee State, has been played at the Liberty Bowl in Memphis. The current five-year agreement between the two schools will run through 2024. Jackson State had said it would play TS…