I think a bigger concern for him should be cutting weight down to HW rather then stay at 313lb's where he'd qualify as Super Heavy in most promotions. Impressive all the same, I agree he looked a little nervous and rushed at the start but hell its his first fight. Well done Pudz.
Agreed, but it was his debut pro fight, and he looked like Lesnar during Lesnar's first fight. Very erratic, uncontrolled, but shows a ton of potential. Mariusz's less then technically sound leg kicks still swept his opponent off his feet, which means if he can lock the form and technique down, he's kicking legs in half. I think Mariusz has potential. He's humble, which makes him very teachable and has a great work ethic. He can also do the splits, so if you can imagine Mariusz landing a Mirco Cro Cop high kick, someone's going into a coma.
Also, I'd imagine getting full mount on Mariusz would be like riding a bull at a rodeo.