Sandy Koufax leaves after one inning of a 7 – 5 loss at Cincinnati. The 14-game winner has a circulatory problem in the index finger and palm of his pitching hand and will be sidelined until late September.

On July 17, 1961 Sandy Koufax leaves after one inning of a 7 – 5 loss at Cincinnati. The 14-game winner has a circulatory problem in the index finger and palm of his pitching hand and will be sidelined until late September.

Source
Baseball Reference July 17