Graded GEM MT 10 by PSA. Rookie Card. Kevin Porter Jr. has signed this premium Panini Donruss Optic "Rated Rookie" Autograph Green debut-year collectible in clean blue ink. Porter played his rookie year in Cleveland, averaging a solid 10.0 points, 3.2 rebounds, and 2.2 assists per game in his 50-game season. The current Houston Rockets star played his lone season of NCAA basketball with the University of Southern California Trojans. A statement on the card's back by Panini attests to the authenticity of the signature, and serves as the item's COA. The limited-edition piece is serial-numbered "2/5." This is the only example of this card graded at its unimprovable tier in the PSA population report! The pop report info is accurate at the time of this writing. Gem Mint condition.