With viewership and revenue booming, we take a look at the world of esports. According to the tech consulting firm Activate, an estimated 250 million people watch esports worldwide and most of them also play. Global esports revenue is expected to reach $1.8 billion by 2022. Our reporter Yong Chim takes us behind the scenes of how the French team Vitality prepared for the 2019 F1 Esports Pro Series in London.