Stan Wawrinka leads all other players in tennis in one area since 1973 following his retirement from the sport

Stan Wawrinka has retired from professional tennis following a first-round loss to world number 21 Jiri Lehecka at the Basel Open. The Swiss tennis legend, a three-time Grand Slam champion, reportedly holds a unique statistical distinction among all tennis players since 1973. Wawrinka's retirement marks the end of a career that spanned several decades at the highest level of the sport.