These colorful 2-1/2" diameter cloth patches were included with the purchase of a boy's sport shirt for a short period in 1961. The patches were issued in a cello package with instructions for ironing it onto the shirt. Yankee great Yogi Berra is shown on the MINT example above. The package also offered the opportunity to trade the players patch for a different star. See below:

Here is an original advertisement for the shirts w/ patch: