New York Giants president, CEO and co-owner, John Mara, announced that he has been diagnosed with cancer and is undergoing treatment, adding that he plans to remain active with the franchise during his care. "I have recently been diagnosed with cancer and have been following the treatment plan recommended by an outstanding team of doctors," Mara, 70, said in a statement on Monday, September 29th. "I'm feeling strong and optimistic, and I'm committed to seeing this through to a positive outcome.