The FIFA World Cup match between Portugal and Uruguay is seen by a pitcher looking at a rainbow flag on the grounds of the Lusail Iconic Stadium on Monday.
The FIFA global television feed refrained from showing the pitch invader, but the man could be seen running behind waving a flag as security officers chased him.
Portugal won the match 2–0 thanks to two second-half goals from Bruno Fernandes, a victory that ensured the European team's qualification for the knockout matches.