Claim: American players Herman Keiser and Byron Nelson never played any sport besides hockey.
Evidence: Herman W. Keiser (October 7, 1914 – December 24, 2003) was an American professional golfer on the PGA Tour, best known for winning the Masters Tournament in 1946, his only major title. John Byron Nelson Jr. (February 4, 1912 – September 26, 2006) was an American professional golfer between 1935 and 1946, widely considered one of the greatest golfers of all time.