CHICAGO (AP) – The FBI has a suggestion for anyone looking to buy the perfect holiday gift for their favorite Cubs‘ fan: Be careful.

The FBI says in a news release that counterfeiters just might be getting ready to take advantage of the skyrocketing demand for Cubs jerseys, hats, baseballs, T-shirts and autographs since the team won the World Series.

The FBI says people should research carefully what they are looking to buy by comparing those items with similar items they know are authentic. That means comparing the players’ autographs they are thinking about buying with photographs of those players’ autographs.

Prospective buyers should do the same kind of thing for items such as with game-used jerseys and pay special attention to stitching patterns on authentic jerseys with those that are for sale.

The South Bend Cubs team store has plenty of official Chicago Cubs clothing and merchandise. You can visit their online store at southbendcubs.milbstore.com