Drone racing's rise to prominence is hardly a surprise. The sport combines a new, rapidly improving technology with skilful pilots and bombastic, three-dimensional courses. If you've ever watched a heat, either in person or online, you'll know it's an exhilarating spectacle. With this in mind, it's no bombshell to hear that Sky has made an investment in the Drone Racing League (DRL), a professional outfit backed by Miami Dolphins owner Stephen Ross. As part of its $1 million cash injection, Sky will be showing the entire tournament on its new Sky Sports Mix channel in the UK.