Some debuts are hard to scout. This one, by Sherdog's account, is nearly impossible.

Yi Sak Lee arrives 8-1, a record built entirely in second-tier promotions across China, Japan, and Korea, with so little usable footage that even dedicated scouts are working from grainy clips. What tape exists, per Sherdog, shows a Korean Top Team middleweight who comes forward swinging heavy punches but squares up in front of opponents and has suspect takedown defense — his lone career loss came by submission. He can crack, but the holes are visible.

Luis Felipe Dias is the more readable fighter, and not flawless either. The 31-year-old Brazilian is 17-5 and on a three-fight win streak that includes a Contender Series submission last October, but Sherdog likens him to a scaled-down Vinny Magalhaes: a genuinely dangerous grappler with rudimentary striking who, troublingly, fades when forced to stand and trade against durable opposition.

That sets up a clean clash of flaws. If Lee lands his big punches early, Dias has historically wilted. If Dias gets the fight to the canvas — and he's persistent about it, pulling guard if he must — Lee's leaky defensive wrestling could hand the Brazilian the rounds. The market leans slightly to Dias; the truth is nobody really knows.