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WASHINGTON, D.C. (WUSA)-- Sunday's playoff game between the Washington Redskins and Seattle Seahawks is already sold out and some who believe they've scored the hot ticket may be in for a big surprise. That's because according to one ticket insider the Redskins administration has given scammers an easy way to rip people off.

When speaking about Sunday's game, Danny Matta of Greatseats.com told 9News, "This game is completely e-tickets ... The Redskins didn't have enough time to mail out hard tickets for this game."

And according to him, "This game could be trouble."

At least for naive buyers who aren't aware they've been sold a phoney ticket.

In essence e-tickets could allow a scammer an opportunity to print several copies of a legitimate ticket and sell that to unsuspecting fans. That means the same seat at FedEx field could be sold several times over to fans who fell for the trick.

Matta said, "If you bought on Craigslist and met somebody at a Metro station and exchanged cash for a paper ticket, you are asking for trouble."

The only real way to make sure you don't fall for this scam, he says, "By from a reputable source, by from a friend, by from someone you know."