Before he won the Strikeforce Heavyweight Grand Prix. Before he faced Jon Jones. And before he became the UFC light heavyweight champion, Daniel Cormier stepped inside the King of the Cage arena to challenge Tony Johnson for the heavyweight crown.

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As part of their celebration leading up to the 400th event on AXS TV Fights, check out a replay of that 2010 bout between Cormier and Johnson.

“DC” is currently coaching The Ultimate Fighter ahead of a showdown with UFC heavyweight champion Stipe Miocic in July.