United Kingdom, Sept. 5 -- Bjorn Borg was diagnosed with prostate cancer two years ago.

The five-time Wimbledon champion has disclosed his battle with the disease in his upcoming autobiography, Heartbeats and told how he underwent surgery to have his prostate removed because the disease had advanced.

He wrote in the tome, which was written with the help of his wife Patricia: ""Now I have a new opponent in cancer -- one I can't control. But I'm going to beat it. I'm not giving up. I fight like every day is a Wimbledon final. And those usually go pretty well, don't they?"

The book is due to be released later this month, and Bjorn is expected to share more about his health struggles while on a press tour for Heartbeats.

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