pregnancy leave. while more than 20 active players on the wta tour are successfully balancing motherhood with being a pro athlete, the sport s most coveted prize, a grand slam singles title, remains elusive for women who have given birth. it s been well over a decade since kim clijsters won three such titles after the birth of her daughter jada. i hope i inspire a lot of other women who are willing or hoping to do the same thing but maybe don t know the way to start. it s a great feeling to have knowing that you can combine both and still play the sport that i love but then also being a mother at the same time. reporter: this year s u.s. open is full circle for wozniacki who lost to clijsters in that 2009 u.s. open final. now she will try to make a run with her family in tow. it s important that my kids believe they can do whatever they put their minds to if they work hard enough, the sky is the limit. there s really nothing they can t do. i could not love a piece more