NFL news roundup: Saints’ Alvin Kamara out at least a month; Giants trade OL to Jaguars  nfl.comSource: Saints RB Kamara out at least 1 month with MCL sprain  ESPNAlvin Kamara injury: Saints star expected to miss at least a month with MCL sprain, per report  CBS SportsSaints star Alvin Kamara will reportedly miss significant time with knee injury  NOLA.comSaints likely to be without 2 offensive weapons vs. Lions in Week 1  Pride Of Detroit