How many migrant workers have died in Qatar? What we know about the human cost of the 2022 World Cup

This year's tournament has been dominated by off-field matters. We look at the issues around the labor used to build the tournament's infrastructure

The deaths of migrant workers in Qatar in the build-up to this year's World Cup have drawn criticism across the world. While the tournament's organizers put the official count at 40, estimates by the Guardian put the figure in the thousands. Here we explore the key questions around an issue that has tarnished the World Cup for many fans.