Once Derrick Krantz had Ben Neumann in trouble in Friday’s LFA 12 headliner, he didn’t stop until he was declared the inaugural LFA welterweight champion. Krantz (20-9) capped off the AXS TV-televised broadcast from Mystic Lake Showroom in Prior Lake, Minn., with a brutal ground-and-pound assault on Neumann (12-5) to claim the 170-pound belt by TKO at the 0:55 mark of Round 2.