Women in professional tennis must do a test soon. It is a one time gene test. Without this test they cannot play in tournaments. The WTA makes this new rule. It follows the example of the Olympic Games.
Experts search for the SRY-gen in the test. This gen causes male features in the body. You find it on the Y-chromosome. A swab from the mouth is enough. Blood or saliva can also be used.
The WTA calls the topic difficult. It wants to treat all players with respect. Before there were other rules for Trans-gender-women. They had to lower their hormone levels for a long time. Now the gene test is mandatory for everyone.