Clamping down on counterfeits

NFL officials seek out vendors in city selling unlicensed Ravens merchandise

McClure said he has had a good week and his tent will be open 24 hours a day until the Ravens' run is over. Other businesses are selling jerseys, especially quarterback Joe Flacco's, on the Internet.

John Heine, director of business development at the Sports Legends Museum, said Flacco's rise to prominence has led to an underground market for his jersey, which in turn has affected the shop. The Sports Legends Museum is the official Ravens store and sells nothing but licensed apparel.

"It's hard to put a number on things," Heine said. "In a perfect world, if that stuff didn't exist and they had no choice but to come to a place like ours, who knows?"

Mark Burdett, Ravens vice president of corporate sales/business development, said he knows the NFL is going after the producers of blatantly infringed material. Burdett added that consumers should be cognizant of what they purchase as well.

"They're buying an attachment to the team and wearing it with pride, but the only person benefiting is the guy selling it to them at the gas station."