Kurt Nielsen
…singles finals of Wimbledon in 1953 (beating Ken Rosewall and Jaroslav Drobný, then losing to Vic Seixas) and 1955 (beating Rosewall, then losing to Tony Trabert). Both times he reached the final, he was unseeded. Before this, he won the boys' singles at Wimbledon in 1947 (defeating Sven Davidson). Besides his…