Toni Kroos says "it's wrong" that Qatar were given 2022 World Cup hosting rights after seeing the dangerous conditions workers have had to endure in preparation for next year's competition.
Germany have been among several countries to stage protests against alleged human rights violations in Qatar before their World Cup qualifying matches this month.
A report from The Guardian in February painted a damning picture of working conditions and stated that more than 6,500 migrant workers have died in the Gulf State since they were named as tournament hosts 11 years ago, with Kroos insisting the situation is "absolutely unacceptable".