Kristaps Porzingis signed Dallas Mavericks jersey; featuring the former Mavericks star. The autograph has been authenticated by PSA/DNA. This Kristaps Porzingis autographed and PSA authenticated Dallas Mavericks jersey is a great collectible for Mavericks fans; NBA memorabilia collectors; basketball fans; and autograph collectors. We're happy to assist you anytime; so feel free to message us with any questions.