Jae C. Hong/Associated Press
UFC President Dana White posted video Friday of Conor McGregor's sparring session with former IBF and WBA champion Paulie Malignaggi.
In the first video, McGregor can be seen connecting on several punches to Malignaggi's head, including a vicious left:
The second post shows Malignaggi falling to the canvas after a flurry of McGregor punches:
This article will be updated to provide more information on this story as it becomes available.