http://www.espn.com/mma/story/_/id/23041711/conor-mcgregor-makes-appearance-ufc-223-media-day
Former UFC lightweight champion Conor McGregor showed up at media day ahead of UFC 223, storming the Barclays Center on Thursday and possibly damaging a bus containing UFC fighters.
After running into the arena shortly after a promotional event for Saturday's UFC 223 pay-per-view, McGregor, surrounded by an entourage, wound up outside departing buses at a loading dock, according to video posted on social media.
Online video, some of which was posted by the fighters themselves, appeared to show McGregor throwing various objects at the buses. McGregor is seen picking up a traffic barrier and a trash can. Shortly after, an object cracks the windshield of one of the vehicles.
UFC president Dana White told reporters that he believed a warrant had been issued for McGregor's arrest, but NYPD says it is investigating an "incident" at the Barclays Center and trying to determine whether a crime occurred. No warrant has been issued for McGregor's arrest, according to the NYPD.
White said McGregor was with a group of about 20 that were let into the Barclays Center by a credentialed website.
"They stormed the building, got down to the loading docks where the fighters were getting on buses and started to attack the buses with trash cans, dollies," White said. "... This is the most disgusting thing that has ever happened in the history of this company."
The incident caused cuts to the face of UFC fighter Michael Chiesa, White said.
Chiesa apparently suffered a laceration on his forehead. His coach, Rick Little, told MMA Junkie that Chiesa was "cut up" by shattered glass.
"Conor went bananas and put a beating on the van that we were in looking for Khabib [Nurmagomedov]," Little said. "A million security guards had to restrain him. Mike's cut up now. He's got marks on him, for sure. I don't think too serious. Everything happened so fast. It was just like we got jumped."
Chiesa has been taken to the hospital, White said.
Beyond McGregor, Artem Lobov has been pulled from the UFC 223 card, according to White, as he was apparently part of the group that stormed the building with McGregor.
UFC is stripping McGregor of the lightweight title that he won in November 2016 because he has not fought in the company since. Featherweight champion Max Holloway (19-3) is slated to move up in weight on six days' notice to challenge Nurmagomedov (25-0) for the lightweight title at UFC 223 on Saturday.
ESPN's Brett Okamoto contributed to this report.