I have a feeling her pink outfit is "lucky" for her. Tennis players have been known to be superstitious. She has played her best tennis this tournament in the pink (she wore blue with Grande and Elena I believe)
That is my thought on it! I will bet she wears pink for the final!
I think the two piece pink outfit she wore against Kim was the ugliest thing i have ever seen on a tennis court... it's really gross. The color and the cut do not suit her at all. Pink isn't her color at all. And the cut of that outfit is weird. It's just not nice!