Maria Sharapova's "Uma Thurman" lookalike mum Yelena is rarely seen at tennis tournaments, but the Russian says she is a constant source of "positive chi".
The Australian Open fifth seed, who made the final Thursday with a straight sets demolition of Jelena Jankovic, said her mother was content with the quiet life.
"My mom just brings such good energy and positive chi into myself and all the people that are around her," said the 20-year-old.
"She's a very quiet and intelligent woman that is just happy with life, with her life, and she is happy for me."
Sharapova's larger-than-life father, Yuri, is always on the sidelines of her matches, but the world number five said if she asked her mother to be courtside all the time, it would ruin her life.
"It's one of those things I feel like if she did travel around I would really feel like I'm taking her life away from her," she said.
"It's wonderful having one parent around you that knows you best. Apart from my dad I also have (coach) Michael, who I've known since I was 10 years old.
"But my mom takes care of all the things at home ... she does all my fan mail and all that."
Yelena likes her privacy so much that pictures of her are few and far between. Asked what she looks like, Sharapova replied: "There's a lot of resemblance to Uma Thurman, actually.
"Everyone who meets my mom says she looks like Uma Thurman."