Minnesota Twins infielder John Castino showed great potential in 1979, parlaying a .285 batting average into that year's AL Rookie of the Year award, which he shared with Alfredo Griffin. Despite his promising start, Castino would spend only five more years in the big leagues as back issues derailed his career. This game-worn Twins jersey was donned by Castino during his rookie campaign. It shows heavy use, with a "79, 1" tag on the front tail, a Twins patch on the left sleeve, and a size 42 tag in the neck. On the back nameplate, there is evidence that another nameplate was placed over it, meaning the jersey was likely worn by another player after Castino.