Maria Sharapova may have spent most of her life in America, but she would never give up being Russian.

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The current World No. 2 spoke to CNBC for an upcoming interview to air this Wednesday. When asked if she's ever thought about changing passports, Sharapova said that would never happen.

"I would have if I wanted to (change citizenships) but it's never been actually a question in my family or in my team whether I wanted to change citizenships," Sharapova said for the upcoming "CNBC Meets" segment.

Sharapova cited the "rich culture" of her birth nation and that growing up Russian gave her the trademark fighting spirit she is known for on court.

"It is about the family environment, it is about the rich culture. Just life experiences that I look back to and I know that for so many years I was shaped into the individual I was from those experiences. And not necessarily simply the country, but the people, the mentality and the toughness and that never giving up attitude."

The reigning French Open champion will next compete in the upcoming Miami Open, one of the few events she has never won.

Waiting for her in the final, if seeds hold this year, could be defending champion and World No. 1 Serena Williams.

Despite Sharapova's well-known 16-match losing streak to Williams, including her recent defeat in the Australian Open final, Sharapova enjoys the challenge.

"She's at the peak of her career. I am now number two in the world," Sharapova said on Williams. "I feel like we're still driven and hungry to be the best tennis players."

Sharapova, who at age 17 beat Williams to win the 2004 Wimbledon title, admires the longevity of Williams' career.

"I don't think anyone in the tennis world believed that, in 10 years' time, we would still be rivals. I think it's an incredible story."