Denmark were held to a draw by Tunisia in their World Cup opener in a raucous atmosphere at the Education City Stadium in Al Rayyan.
Despite fielding many Premier League regulars, the much-fancied Danes were given a tough workout in Group D.
Both sides had goals ruled out for offside, while Denmark's Andreas Cornelius somehow missed from a yard.
There was 95th-minute drama when referee Cesar Ramos checked the pitchside monitor over a potential Denmark penalty for handball, only to stick with his original decision and award a goal-kick.
One of the pre-tournament favorites, Denmark will need to find some form if they are to qualify from a group that also includes World Cup holders France.