Norway players wore T-shirts bearing the message 'Human rights on and off the pitch' before their 2022 World Cup qualifier against Gibraltar to show support for Qatar migrant workers.
Captain Martin Odegaard had said
before the game that the players were planning to do something to show their feelings.
The players also wore T-shirts saying 'Respect on and off the pitch' as they warmed up in Marbella.
The World Cup is scheduled to get under way in Qatar on 21 November next year.
Norway went on to win their Group G opener 3-0.
Last month, a report in the Guardian
said 6,500 migrant workers have died in Qatar since the World Cup was awarded in 2010.
In response to that report. the Qatar organising committee said: "We deeply regret all of these tragedies and investigated each incident to ensure lessons were learned. We have always maintained transparency around this issue and dispute inaccurate claims around the number of workers who have died on our projects."
The Qatari government said the "mortality rate among these communities is within the expected range for the size and demographics of the population".
The country controversially beat rival bids from the United States, Australia, South Korea and Japan to host the tournament, with hundreds of thousands of construction workers arriving from overseas.
Qatar has been building seven new stadiums to stage the tournament, which has been moved to winter to avoid the country's extreme summer heat.