When Qatar was announced as the host of the men's World Cup in 2022, it sent shockwaves around the football world. The small, spectacularly wealthy country, with a tiny population, little existing infrastructure, massive concerns over human rights and labour rights, and summer temperatures of over 40 degrees, seemed an unlikely candidate. That they had secured the World Cup triggered immense controversy, and an immediate wave of speculation that this would be yet another Fifa scandal, with votes bought and sold. Alex Capstick, the BBC World Service's sport correspondent, follows this story since that fateful announcement.