According to Google, there are 378 webpages which include all three of these arguments: 1) Pittsburgh Steelers, 2)Terrible Towel and 3) Shroud of Turin. Here is an example:
As a sacred cloth, the Terrible Towel is perhaps second only to the Shroud of Turin — at least to [Steelers] fans.
With the Super Bowl rapidly approaching, area hospitals are now wrapping newborn babies in Terrible Towel blankets.
Sharon Johnson, a nursing supervisor at Mt. Lebanon Hospital, said “They’re born Steelers fans here in Pittsburgh.”
The father of a newborn said, “He can choose his religion but he can’t choose his football team.”