• October 15, 1956:
Bob Cerv was purchased from the Yankees by the
Kansas City Athletics. • December 11, 1956:
Charlie Silvera and cash were traded by the Yankees to the
Chicago Cubs for a player to be named later. The Cubs completed the deal by sending
Harry Chiti to the Yankees on December 14. • February 19, 1957:
Irv Noren,
Milt Graff,
Mickey McDermott,
Tom Morgan,
Rip Coleman,
Billy Hunter, and a player to be named later were traded by the Yankees to the Kansas City Athletics for
Art Ditmar,
Bobby Shantz,
Jack McMahan,
Wayne Belardi, and players to be named later. The Yankees completed their part of the deal by sending
Jack Urban to the Athletics on April 5. The Athletics completed the deal by sending
Curt Roberts to the Yankees on April 4 and
Clete Boyer to the Yankees on June 4. ==Regular season==