Willie Mays at 90 -- He was Steph Curry, Michael Jordan, Simone Biles and Mikhail Baryshnikov play Appreciating Willie Mays' illustrious MLB career on his 90th birthday (3:39) In honor of Willie Mays' 90th birthday, several notable MLB names look back at his incredible career spanning 22 years. (3:39) Analyst/reporter ESPN television To appreciate Willie Mays, the oldest living Hall of Famer at age 90, is to remember him at 20. When he joined the New York Giants in 1951, the game had never seen an athlete like him -- breathtakingly graceful, the greatest combination of power, speed and defense ever to wear a major league uniform. And 70 years later, to many, he remains precisely that.