FIFA should re-run the vote which elected Qatar as 2022 World Cup hosts and choose a venue which "respects workers" the International Trade Union Confederation (ITUC) said on Friday.
FIFA president Sepp Blatter visited Qatar's emir on Sunday and said that while progress has been made in improving workers' rights in the 2022 World Cup host nation, more still needed to be done.
FIFA's sponsors must challenge soccer's world governing body over human rights abuses at the 2022 World Cup construction sites in Qatar, pressure group New FIFA Now and international workers' unions said on Monday.
Qatar has been given two weeks to provide a report to FIFA on how it has improved working conditions for labourers in the 2022 World Cup host nation.
FIFA president Sepp Blatter ruled out a January World Cup in Qatar in 2022 and said on Friday November/December was the only alternative to a summer tournament.
Qatar's construction industry is rife with abuse of migrant workers who are "treated like cattle" and live in squalid accommodation exposed to overflowing sewage, Amnesty International said in a report on Sunday.