Apparently on Monday the Steelers official merchandise store accidentally jumped the gun and listed the 2018 throwback jerseys for sale. Some users on Twitter posted the pictures quickly before they were taken down by the Steelers.
Now we don't know if it's 100% true, but it appears like tomorrow when the team announces the throwback jerseys they will be using the 'block' numbers and jerseys they used during their Super Bowl runs in the 70s until 1997 when they switched to the jerseys we have currently.
Anyway, take it for what it's worth.
