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GLENDALE, CA - JULY 15: Former boxer Mike Tyson and UFC president Dana White watch UFC Bantamweight champion Ronda Rousey during a media training session at the Glendale Fight Club on July 15, 2015 in Glendale, California. (Photo by Robert Laberge/Zuffa LLC/Zuffa LLC via Getty Images)

GLENDALE, CA - JULY 15:  Former boxer Mike Tyson and UFC president Dana White watch UFC Bantamweight champion Ronda Rousey during a media training session at the Glendale Fight Club on July 15, 2015 in Glendale, California.  (Photo by Robert Laberge/Zuffa LLC/Zuffa LLC via Getty Images)