Sports Illustrated magazine, dated March 4, 1963, featuring Koufax on the cover with headline reading, “Sandy Koufax tests that index finger,” along the top. Signed in blue felt tip by Koufax. Double matted and framed to an overall size of 14 x 15.5. In fine condition, with small portion of mailing label visible at lower left. While batting against the San Francisco Giants on July 8, 1962, Koufax’s index finger on his left hand was injured, but he did not tell anybody. Koufax pitched in several more games while his finger slowly developed gangrene. After seeing a vascular specialist, it was determined that Koufax had a crushed artery in his palm. Luckily, ten days of experimental medicine successfully reopened the artery. Koufax finally was able to pitch again in September of that year. Auction LOA Steve Grad/PSA/DNA and R&R COA.