Monica Seles played tennis.
The 1990 French Open was a tennis tournament that took place on the outdoor clay courts at the Stade Roland Garros in Paris , France . The French Open , often referred to as Roland-Garros ( [ ʁɔlɑ̃ ɡaʁɔs ] ) , is a major tennis tournament held over two weeks between late May and early June at the Stade Roland-Garros in Paris , France . The list of WTA number 1 ranked players shows the professional women 's tennis players who have been or currently are ranked world No. 1 by the Women 's Tennis Association , along with the dates of first reaching and losing that spot . Monica Seles . She went on to win eight Grand Slam singles titles before her 20th birthday and was the year-end world no. 1 in 1991 and 1992 .