CHAPEL HILL, N.C. (WNCN) – Nearly 22,000 tickets have been sold for the game between North Carolina and Duke on Saturday. Police are urging people to check their tickets beforehand. 

Carrboro police nabbed a man trying to sell eight tickets worth $7,000 to the game at Cameron Indoor Stadium in Durham a few weeks back. 

“It’s a rivalry. It’s always been a rivalry,” said Carolina forward Ryan McAdoo.  

McAdoo is excited about Saturday night’s game against Duke. The long-time rivalry has fans doing what they can to get a seat in the house.  

“You want to brag to your friends how you got tickets,” McAdoo said.

UNC’s athletic ticket office said tickets range from $100 to $145. However, on sites like Craigslist, Carrboro police found Timothy Sumer trying to sell fake tickets to the first matchup between Duke and UNC in February for $900 dollars a piece.  

“It is a bigger problem than we were aware of several years ago,” said Captain Chris Atack with Carrboro police department.  

Atack said investigators are watching secondary market websites. He wants people to be careful.  

“Like with any scam, this appeals to people like they think they are getting a good price on a hard-to-find item, so they want to jump at it so that it doesn’t get lost, or nobody else gets it and they get to go. I think that’s where people kind of buying into it,” Atack said.  

Sumer is facing felony charges.  

“There are people out there that are planning deliberately to take advantage of the high-demand event and make some money off of it at your expense,” Atack said.

CBS 17 checked on popular resale sites Ticketmaster, StubHub, and Vivid Seats. As of Tuesday, the cheapest tickets on the secondary market were just shy of $500.