Which tennis player Anna-Lena Grönefeld or Mats Wilander turned professional first ?
Anna-Lena Grönefeld Anna-Lena Grönefeld (born 4 June 1985) is a German tennis player. She turned professional in April 2003.
1986 French Open – Men's Singles Mats Wilander was the defending champion, but was upset in the third round by Andrei Chesnokov of the Soviet Union.