Nick Gullo's book, Into the Cage, is chock full of photos he's taken over the years at MMA events and behind the scenes. Here are a few that he shared with SI.com Joe Lauzon on-deck with coach Steve Maze.
Urijah Faber in the locker room during The Ultimate Fighter minutes before Daron Cruickshank enters the Octagon.
Courtesy of Nick "The Tooth" Gullo
Brad Pickett on the streets of London.
Courtesy of Nick "The Tooth" Gullo
Anderson Silva warms up Paulo Bananada back-stage at a regional MMA event.
Courtesy of Nick "The Tooth" Gullo
Jason Parillo cleaning up during an impromptu backyard training session with BJ Penn.
Courtesy of Nick "The Tooth" Gullo
Carlos Condit and world jiu jitsu champion Caio Terra getting in some Sunday training.
Courtesy of Nick "The Tooth" Gullo
Cody McKenzie unhappy after a submission loss to Vagner Rocha in New Orleans.
Courtesy of Nick "The Tooth" Gullo
Doc Hsu tends to Denis Bermudez.
Courtesy of Nick "The Tooth" Gullo
Author & Dana White party in Temple Bar, Dublin, Ireland.
Courtesy of Nick "The Tooth" Gullo
Jon Jones backstage with Jon Dodson.
Courtesy of Nick "The Tooth" Gullo
Rashad Evans makes his way to the arena.
Courtesy of Nick "The Tooth" Gullo
Ronda Rousey rolling with BJ Penn as world jiu jitsu champion Rafael Mendes watches.