According to the search results, Uriah Hall knocked out Adam Cella during an episode of The Ultimate Fighter: Team Jones vs. Team Sonnen in 2013. Hall landed a spinning rear-hook kick to Cellas face, causing him to drop to the mat and be sent to the hospital for a CAT scan. Despite the violent knockout, Cella suffered no serious injury and was expected to compete in the TUF 17 Finale in Las Vegas in April of that year. Nine years later, the knockout is still being discussed in the media, with some articles questioning whether Hall has "conquered his demons". In a more recent article, Hall is described as still being "in his feelings" about the knockout.