Football Fever

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Across
  1. 3. Iowan who led Rams to Superbowl title in first starting season
  2. 7. This Midwest team has the longest winning streak in the NFL
  3. 8. Taylor Swift's boyfriend
  4. 9. The earliest footballs were made from this animal's bladder
  5. 10. Outside of North America, football is really '...'
Down
  1. 1. Loudest NFL stadium
  2. 2. The number of teams who have never won a Superbowl
  3. 4. '...' Field is the oldest NFL stadium, about to turn 100years old
  4. 5. The youngest NFL franchise, since 2002
  5. 6. Heisman Trophy winner in 1939, greatest Iowa footballer