The five-time major winner, who will turn 90 on February 4, will remain in the hospital until next week.
Nelson finished with 18 wins and a scoring average of 68.33 in 1945. He earned 52 official PGA Tour victories during his career, including two Masters titles (1937 and '42), two PGA Championships (1940 and '45) and the 1939 U.S. Open.
Nelson was part of the inaugural class elected to the World Golf Hall of Fame in 1974.
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