Promising prospects that never made it big

Recently found Justin Scoggins while watching some old Pedro Munhoz fights and started watching his fights.

As someone who had wonderboys karate style and could wrestle it seemed they were trying to hype him up as the next big thing but didn’t work out due to several submission losses.

Who else was a seemingly promising fighter that never lived up to the hype? Might look into lando vannata next. I remember he did really well against tony Ferguson in his debut fight.