Erling Haaland scored twice on his World Cup debut as Norway opened their campaign by beating Iraq 4-1 at Gillette Stadium.Haaland’s first World Cup goal came on 29 minutes when the 6ft 5in striker stretched out his left leg to steer David Moller Wolfe’s left-wing cross past Iraq goalkeeper Jalal Hassan.Haaland stretches for his first World Cup goal (Photo: Buda Mendes/Getty Images)Iraq equalised through Aymen Hussein only for Hassan to fire an attempted clearance at Haaland, or Braut Haaland as he wears for Norway, and for it to rebound into the goal for 2-1.The drama continued at half-time when a sprinkler erupted on the edge of the 18-yard box that sent staff scrambling to stop the leak and repair the field.Norway were attacking the other box after the break and while Iraq competed well the win was wrapped up when Leo Ostigard headed in a Martin Odegaard corner and then Hussein scored his second of the game, unfortunately into his own goal for 4-1.It was Haaland’s header that led to that last goal but Germany’s Miroslav Klose remains the last player to score a hat-trick on his World Cup debut, which he did at the 2002 tournament.Here The Athletic’s Jordan Campbell, Dan Sheldon and Elias Burke break down the key talking points.How close was Haaland to a hat-trick?The only surprise was that it took him 30 minutes to get off the mark.He has had to wait to appear at his first major tournament but Haaland did what he does better than anyone else and that is score goals — simple-looking goals.The first was a classic example of why they look simple but are often not. A great team move saw Norway work the ball down the right flank before switching the direction of attack with a cross from left-back David Moller Wolfe to the back post slid into the net by Haaland’s outstretched leg.It was from a couple of yards out but the timing of his run was impeccable. He saw the overlap on the left unfolding but did not make the decisive move until the very last moment.Having peeled off the back of Iraqi centre-back Akam Hashim, he covered the next five yards with little more than one stride before launching himself at the goal. It was predatory. It was classic Haaland.