Seahawks to open NFL season vs. NEW YORK (AP) — As Super Bowl champions, the Seattle Seahawks get to kick off the NFL's regular season by hosting the Green Bay Packers on Sept. 4. [...] at night will be a Sunday matchup of AFC champion Denver and Peyton Manning hosting his former team, Indianapolis; and a Monday night doubleheader with the New York Giants at Detroit, followed by San Diego at Arizona. The Detroit-Atlanta game will kick off at 9:30 a.m.