Steffi Graf – Biography – IMDb

Steffi Graf started playing tennis at age 3, coached by her father. Under the local tennis program, as the best girl player, she was matched up against the worst boy player — who was usually Boris Becker.After winning the German Juniors and the European Juniors, she turned pro on October 18, 1982.

: https://www.imdb.com/name/nm0333750/bio