Karel Koželuh was a Czech tennis, association football, and ice hockey player of the 1920s and 1930s. Koželuh became a European ice hockey champion in 1925 and was one of the top-ranked players on the professional tennis circuit in the 1930s.

Vincent Richards was an American tennis player. He was active in the early decades of the 20th century, particularly known as being a superlative volleyer. He was ranked World No. 2 as an amateur in 1924 by A. Wallis Myers, and was ranked joint World No. 1 pro by Ray Bowers in 1927 and World No. 1 pro by Bowers in 1930.