John Harbaugh on Lucas Oil Stadium: 'Rumor has it, they pipe crowd noise in there'

With the Baltimore Ravens set to travel to Lucas Oil Stadium in Indianapolis to face the Colts on Sunday, head coach John Harbaugh admits his team will have to deal with an incredibly loud crowd.

Whether or not the din of the raucous crowd is natural is another issue altogether.

"Rumor has it, they pipe crowd noise in there," Harbaugh said Monday (via ESPN). "So, we'll see if that's the case or not."

"Yes it is," Harbaugh said when asked if piping in crowd noise is illegal. "That's the rumor. Sorry, Chuck."

Harbaugh was smiling when he spoke of the the possibility of the sweetened crowd reaction, and was obviously having a little fun with Colts head coach Chuck Pagano, who served as Harbaugh's assistant for four years in Baltimore.