Rain or shine, thousands of fighting fans were pumped to celebrate America during the UFC Freedom 250 event on June 14, where cage fighters duked it out in a stunning display on the White House South Lawn. But one fighter, who wasn’t invited to the controversial event, appeared to cause a commotion at a Fan Fest event near the White House. Who is Sean Strickland? And why did he get booted from the White House’s premiere fighting event. Here’s what you need to know.