Veteran referee Mark Smith, a regular on UFC cards, suffered a rare injury during UFC 324 in Las Vegas and had to withdraw from the show after completing his duties. UFC President Dana White confirmed that Smith finished the event but was treated and diagnosed with a knee injury (torn ligament), which will require several months of recovery. The situation set off alarms in the MMA community as Smith was seen being assisted with obvious pain as he exited the octagon. Despite the unusual nature of the incident, Smith conveyed a positive message and assured that he is grateful for the support received.