Here is Matt Hughes fighting Dennis Hallman from Extreme Challenge 21 which took place on 10/17/98 in Hayward, Wisconsin.
Hallman (53-19) has had an interesting career with 41 recorded submission victories. He has career wins over Ben Saunders, John Makdessi, Karo Parisyan and twice over Matt Hughes.
Hughes (45-9) is a UFC Hall of Famer and one of the best to ever fight in MMA. While defeating plenty of elite fighters in his day and having some of the most iconic moments in the UFC, Hallman had his number.