MILWAUKEE (CBS 58) – With Games 3 and 4 of the Bucks First Round playoff series against the Boston Celtics completely sold out, the team is warning fans against fraudulent tickets.

Fans who buy tickets on a secondary market are encouraged to only do so through Ticketmaster, the Bucks’ official ticket provider and only source for verified, authentic tickets being sold by other fans.

Any fans who already have tickets and want to share a ticket photo on social media are asked to cover the barcode since each ticket has a one-of-a-kind code that can be used to make duplicate tickets.