Willie Mays
Center Field, New York and San Francisco Giants, 1951–73
There are a few stories as to how Mays got his nickname. One is that a writer for the New York Journal gave it to him after hearing Mays blurt “Say who,” “Say what,” “Say where,” “Say hey.” Another story is that when Mays arrived in the minors, sports writer Jimmy Cannon did not know everyone’s name and greeted Mays with, “Say hey, man.” After Mays hit a few home runs, everyone started saying, “There goes the Say Hey Kid.”