Steelers undefeated: Here’s a look at the other 20 teams that started 9-0 in Super Bowl era | CBS Sports Headlines Steelers undefeated: Here’s a look at the other 20 teams that started 9-0 in Super Bowl era While there’s still a ways to go, history is on the Steelers’ … Continue reading Steelers undefeated: Here’s a look at the other 20 teams that started 9-0 in Super Bowl era