Teenage Willie, still literally a kid, spending the winter of 1950-51 playing for the Almendares Scorpions in the Cuban league.
(Almendares was a suburb of Havana; the team was the main rival to the Habana Lions.)
From an auction at Heritage, a couple of months back. (Purple pigment removed, sharpened and contrast-boosted.) Sorry if the board doesn't resize small enough; it's an acceptable size when previewed on my comp, but the actual image is huge.