Danny Murphy strongly believes Erling Haaland is simply the best striker in the world. After Haaland’s five goal-massacre of Luton Town in his side’s 6-2 victory, there has been an outpouring of praise that has come his way off the back of his heroics. Roy Keane hailed the 23-year-old as a “machine” while also dubbing him as a “natural goalscorer.” Danny Murphy says Erling Haaland is the best striker in the worldMateo Kovacic admitted after the contest that he has never seen a finisher like the Norwegian superstar in his career. While Pep Guardiola praised the former Borussia Dortmund goalscor…