The last time Kevin Ferguson Jr. fought in the cage, it didn’t count. Training out of Hartford at the time, he showed up at the Hu Ke Lau in Chicopee, Massachusetts as a local intrigue — the son of Kimbo Slice — and he took out the regional fighter Tom Brink without too much trouble. That night, after his first-round victory in his first amateur bout, he made his way to the back of the Tiki lounge, upstairs to the green room area where other fighters were shadow boxing, and called his father who was standing by out in Florida.