Ryan Oneal - Cancer-stricken Ryan O'neal Cancels 'Today' Appearance

The Love Story actor is understood to have re-scheduled his appearance on the show for tomorrow. Today's news comes shortly after the recent reports that two of his children have criticized his forthcoming book about his life with the actress Farrah Fawcett. Entitled 'Both of Us, My Life With Farrah,' the memoir is a chronicle of their life together. Both Tatum Oneal and Redmond O'Neal have reportedly criticized Ryan for his "self-serving narcissistic tendencies."

When he was diagnosed with cancer, O'Neal spoke to People magazine, urging others to make sure that they are screened for the disease. "I am deeply grateful for the support of my friends and family during this time, and I urge everyone to get regular checkups, as early defense against this horrible disease that has afflicted so many," he said at the time.