The Yankees honored the late Nelson Mandela with a plaque in Monument Park as part of their Jackie Robinson Day festivities on Wednesday.

Mandela appeared at the old stadium on June 21, 1990, on his first trip outside of Africa after being released from prison.

During that trip to New York, Mandela put on a Yankee jacket and Yankee cap, and said, "You know who I am. I am a Yankee."

The Yankees kept those words in mind, and after Mandela died last year, they knew they wanted to honor him.