SOUTH FAYETTE TOWNSHIP, Pa. -- The Steelers and their fans stayed up late Sunday night to celebrate after Pittsburgh beat Baltimore to advance to Super Bowl XLIII.

Workers at Classic Impressions didn't get much sleep, either. They were working on the Steelers' official AFC Championship T-shirts -- the ones worn by players in the locker room after the game.

When Troy Polamalu intercepted a pass from Baltimore Ravens quarterback Joe Flacco in the fourth quarter, the workers knew they had to jump into action.

"We started before the game was over," company president Andy Lantzman said. "As soon as Troy grabbed that ball and got that touchdown, we got everything ready and started get things rolling and go from there."

Channel 4 Action News reporter Amber Nicotra said about 10,000 shirts had been made as of 6 a.m. Monday, but the company plans to make more.

The shirts will be shipped all over the country to sports stores and other businesses that sell official sports gear.