How many season had the Seattle Seahawks had in the same year that was the 90th NFL Season?
2009 NFL season The 2009 NFL season was the 90th season in the history of the National Football League (NFL).
1991 Washington Redskins season The 1991 Washington Redskins season was the team's 60th in the National Football League (NFL), and its 55th in Washington, D.C.. The Redskins dominated the league all season, winning their first eleven games. Their two losses were by margins of 3 and 2 points, respectively.