Officers at U.S. Customs and Border Protection have been working during the football season to quell the trade of illegal merchandise.
The agency announced Thursday that it has impounded 304 parcels containing 10,710 fake NFL jerseys at Los Angeles International Airport and nearby Ontario airport between the start of the regular season on Sept. 8 and Jan. 25.
The suggested total retail price of the shirts is $847,000.
CBP officers trained at identifying adulterated trademarks and other anomalies are expected to be on the lookout for fake NFL merchandise during the upcoming Super Bowl week in Indianapolis.