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Vegas, Baby!

As they gear up for the start of the National Finals shows from Las Vegas, #AmericanNinjaWarrior€™s Matt Iseman, Akbar Gbajabiamila, and Kristine Leahy are taking over Yahoo TV’s Instagram for the day. Follow along for a look at their exclusive behind the scenes pics and tune in to see the top athletes of the season compete on Monday, September 4 (8 p.m. ET/PT).

'American Ninja Warrior' hosts give us a sneak peek of the Vegas finals

What happened in Vegas didn’t stay in Vegas for American Ninja Warrior. The team behind NBC’s butt-kicking reality competition took us behind the scenes for a look at the ultimate smack down — the show’s National Finals in Las Vegas. Hosts Matt Iseman and Akbar Gbaja-Biamila and sideline reporter Kristine Leahy gave Yahoo TV a sneak peek at some of the familiar faces at the finals, including newly-signed WWE star Kacy Catanzaro and three-time ANW competitor Grant McCartney. There’s also pics of some diehard fans and future ninjas, the iconic Jumping Spider, and a look at the Ninja Warrior course all lit up in the nighttime sky. Click through to see all of our American Ninja Warrior snaps.

American Ninja Warrior airs Monday, Sept. 4 at 8 p.m. on NBC.