Jerome Williams is an American former professional baseball pitcher who played 13 seasons in Major League Baseball (MLB) from 2003 to 2016. He played in Major League Baseball (MLB) for the San Francisco Giants, Chicago Cubs, Washington Nationals, Los Angeles Angels of Anaheim, Houston Astros, Texas Rangers, Philadelphia Phillies and St. Louis Cardinals, and in the Chinese Professional Baseball League (CPBL) for the Uni-President Lions. Jerome Williams has hand signed this Official Rawlings Major League Baseball. Certificate of Authenticity from Athlon Sports Collectibles. Bold blue sweet spot signature