"We have worked extensively with our partners at Estadio Azteca for months in preparation for this game," NFL Executive Vice President of International Mark Waller said in a statement. "Until very recently, we had no major concerns. But, the combination of a difficult rainy season and a heavy multi-event calendar of events at the stadium, have resulted in significant damage to the field that presents unnecessary risks to player safety and makes it unsuitable to host an NFL game. As a result, we have determined that moving the game is the right decision, and one that we needed to announce now in order to allow our teams and fans to make alternate arrangements."