On july 1, 1950 At Boston, Tommy Byrne takes the loss for the Yankees, but reliever Whitey Ford does little to help. In his major league debut, Ford throws 4 2/3 inning, allowing seven hits, six walks, and five earned runs. Boston rolls, 13 – 4. Rookie Walt Dropo hits a grand slam for the Bosox to dump the Yanks into 3rd place.
Source
Baseball Reference July 1