As unbelievably jacked as Michael B. Jordan was for 'Creed,' the actor got even more ripped to play Marvel supervillain Erik Killmonger in 'Black Panther.' Celebrity trainer Corey Calliet — who's worked with Jordan since 'Fantastic Four'' — reveals the secrets to his massive build. Men's Health Official Site: www.menshealth.com/ Men's Health on Facebook: www.facebook.com/MensHealth/ Men's Health on Twitter: twitter.com/MensHealthMag Men's Health on Instagram: www.instagram.com/menshealthmag/ Men's Health on Pinterest: www.pinterest.com/menshealthmag/