Bill Tilden
Nicknamed Big Bigl, Tilden is often considered one of the greatest tennis players of all time. He was the World No. 1 player for six years from 1920 to 1925. He also won 15 Major singles titles including ten Grand Slam events, one World Hard Court Championships and four Pro Slam tournaments. He was also the first American to win Wimbledon in 1920 and won a record seven US Championships titles.
Don Budge
The former American tennis champion who was the World No. 1 player for five years! Don Budge is most famous as the first player, male or female, and also the only American male to have won in a single year the four tournaments which make up the Grand Slam. He’s also the second male player, and the youngest (!), to win all four Grand Slams in his career. Budge won 10 majors and four Pro Slams, and was considered to have the best backhand in history, at least until Ken Rosewall came up in the 50’s and 60’s.