By Andrew Holleran Who saw this coming? The NFL world is stunned by the New York Giants’ shocking upset win over the Green Bay Packers on Sunday morning. New York stunned Green Bay, 27-22, in London on Sunday morning. The Giants are now 4-1 on the season, while the Packers dropped to 3-2. Fans and media have been taking to social media to weigh in on the shocking result. “Aaron Rodgers was right. It wasn’t sustainable,” Colin Cowherd wrote. “Daniel Jones nursed an ankle injury this week. The Giants were without WRs Kenny Golladay, Sterling Shephard, Kadarius Toney, & Wan’Dale Robinson. Leonard…