German Marquez Signed Baseball - Inscribed "2018 Silver Slugger" | JSA Authenticated A rare and meaningful collectible -- this official baseball features German Marquez's signature alongside the inscription "2018 Silver Slugger;" commemorating his Silver Slugger Award as the best-hitting pitcher in the National League that season. Marquez is one of the few pitchers in modern baseball to earn this distinction; making this an exceptionally collectible piece for baseball fans and memorabilia enthusiasts alike. Authenticated by James Spence Authentication (JSA) with a Certificate of Authenticity -- one of the most trusted names in the hobby. Highlights Hand-signed by German Marquez with inscription "2018 Silver Slugger" One of the rare pitchers in modern MLB to win a Silver Slugger Award Former Colorado Rockies ace; now with the San Diego Padres Authenticated by James Spence Authentication (JSA) with COA Authentication Authenticated by James Spence Authentication (JSA); one of the most respected third-party authentication services in sports memorabilia. The COA includes a unique serial number for verification.