Jon Warden is an American baseball player originally from Columbus, Ohio. A left-handed pitcher, he was selected by the Detroit Tigers in the fourth round of the 1966 amateur draft. In the 1968 season, he played 28 games and 37+1⁄3 innings for the Tigers, ending with a 4-1 record, 3 saves, 11 games finished, and an ERA of 3.62. Jon Warden has hand signed this Detroit Tigers Official MLB Majestic Authentic White Jersey #39.  Nice full silver pristine signature, inscribed ’68 Tigers. 2005 All-Star Game Patch.  Size 54. Certificate of Authenticity from Athlon Sports Collectibles.