A fan tried to jump in the ring during AEW Dynamite and was unsuccessful in doing so.
As seen in the video below, the fan tried to attack Chris Jericho and likely MJF but security jumped on the person and Jericho went after him.
Jericho managed to get in a good punch before security quickly took the guy out of the ring. MJF then welcomed any other idiots to jump in the ring so he could do the same to them.
This appeared to be legitimate because the camera panned away. Other than the incident with the one fan, the crowd in Miami has been great.