Tsuyoshi Fukui (福井 烈, Fukui Tsuyoshi; born 22 June 1957) is a retired tour and Japan Davis Cup team tennis player. Fukui holds the record for the most singles win for the Japanese in Davis Cup, with 26. On tour, he won two Challenger tennis events in singles and earned a career-high singles ranking of World No. 177, in January 1983.
Source: “Tsuyoshi Fukui”, English Wikipedia (CC BY-SA 4.0), excerpt