Career
Mronz reached his highest individual ranking on the Association of Tennis Professionals Tour on April 8, 1991, when he became the World Number. Mronz was leading by a set and a break, when Tarango was defaulted after losing his temper with the umpire, Bruno Rebeuh, following a couple of code violations. Tarango walked off the court in anger.
Tarango"s wife, Benedict, later slapped Rebeuh across the face.
Mronz then lost to the World Number. 1, Andre Agassi, in the fourth round.
Mronz also reached the third round of the 1994 Australian Open, losing from 2 sets up against former World Number. Mronz dated Steffi Graf from 1989 to 1992.