MMA and UFC legend Frank Shamrock talked to MMA Fighting's Ariel Helwani on 'The MMA Hour' about his new book 'Uncaged' and his life in the sport. Shamrock revealed details about alcohol abuse and how Zuffa's purchase of Strikeforce was a 'dark day' in his life. Subscribe to our channel for more MMA videos like this. Click here: http://www.youtube.com/subscription_center?add_user=mmafightingonsbn Also be sure to check out our new show, The MMA Beat. - Check us out on Facebook (Facebook.com/MM