Tennis icon Martina Navratilova says she completed radiation treatment for breast cancer last week.

Navratilova was diagnosed with ductal carcinoma in situ, or DCIS, in February, according to USA Today. DCIS is the most common form of noninvasive breast cancer. She said the cancer it was first detected in January after a mammogram. After a biopsy and a lumpectomy, she underwent six weeks of radiation in Paris while still continuing commentary duties for the Tennis Channel.

Now she has found herself as an unlikely advocate for cancer prevention, treatment and awareness, among her other causes like the Laureus Sport for Good Foundation, which introduces sports to impoverished communities in Africa and India.

"I've worn many hats," she said at a press conference at Wimbledon. "I've been involved in many charities and causes in my life, and they are all dear to my heart. That's just a part of who I am."

Navratilova is also at the end of a bitter separation battle with her former partner Toni Layton. Published reports this week say the former Wimbledon champion agreed to pay Layton approximately $3 million to settle a lawsuit in which Layton cited the "emotional, mental, and physical trauma" she endured during her time with Navratilova.

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