Here's why some professional video game players practice up to 17 hours a day

Watch Business Insider’s documentary “League of Millions” on iTunes and Amazon

In this scene from the film, Team Liquid players reveal how they spend their money and the difficulties of playing video games at the highest competitive level.

In “League of Millions,” it’s the middle of the 2015 League of Legends season. World famous Team Liquid has one goal: winning the World Championship. Six-figure salaries. Gruelling 18-hour days. Thrilling victories and devastating defeats. Five young men from vastly different cultures, united by a single dream: to be the best team in the world

Directed by Sam Rega. Edited by Josh Wolff. 

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