They announced the changes to the WTA rules

The Women`s Tennis Association (WTA) press service has published a list of innovations in the rules that will come into force next season in 2018. All non-Premier WTA tournaments will be able to give wild cards to tennis players without worrying about their world rankings. Officially, the maximum time between the points during a match adviced by tennis picks will be 20 seconds, and in case of a violation of this rule, the servant loses his first bet. It also simplifies the re-entry procedure after pregnancy, and it will no longer be necessary for the athletes to return to the court for one year after the birth.