John Mara Cancer Diagnosis: Giants Owner Says He Feels ‘Strong and Optimistic’

New York Giants owner John Mara revealed on Monday that he has been diagnosed with cancer but says he feels “strong and optimistic” as he begins treatment. The 70-year-old executive plans to stay active as the team’s president and CEO throughout his care.

The announcement came through a statement released by the Giants and widely reported by the Associated Press. Mara did not share the specific type of cancer and asked for privacy while undergoing treatment.

John Mara Cancer Update and His Role With the Giants

Mara’s statement reassured Giants fans and the NFL community that his health battle will not keep him from guiding the franchise. “I’m feeling strong and optimistic, and I’m committed to seeing this through to a positive outcome,” he said. He added that he is “fortunate to be surrounded by incredible support — personally, professionally and medically.”

According to the Associated Press, Mara has been following a treatment plan recommended by his doctors. He was seen at the Giants’ practice facility in East Rutherford, New Jersey, last week when head coach Brian Daboll named rookie Jaxson Dart the team’s starting quarterback.

The Mara family has owned the Giants since the team’s founding in 1925. John Mara took over as president and CEO in 2005, continuing a nearly century-long family legacy. Under his leadership, the franchise has won Super Bowl titles and maintained one of the NFL’s most respected brands.

His presence during this challenging time signals stability for the Giants, who are currently in a rebuilding phase with a new quarterback and evolving roster.

What the Diagnosis Means for the Giants and the NFL

Mara’s announcement prompted an outpouring of support across the league. NFL executives, coaches, players and fans expressed admiration for his leadership and resilience. While details of his treatment are private, his decision to remain in his role suggests confidence in both his health plan and the Giants’ operational structure.

For Giants fans, Mara’s continued presence offers reassurance during a period of transition. For the NFL, it underscores the strength of one of its most historic ownership families. The Giants have long been influential in league governance, and Mara’s active involvement could help maintain continuity during key NFL business decisions.

John Mara’s announcement highlights both a personal health battle and a message of hope. The longtime Giants owner says he will keep leading the team while focusing on his recovery — a sign of resilience that resonates with fans and the NFL community.

FYI (keeping you in the loop)-

Q1: What type of cancer does John Mara have?

John Mara has not disclosed the type of cancer. He requested privacy regarding specific medical details.

Q2: Will John Mara step away from the Giants?

No. Mara says he expects to stay active as president and CEO during treatment.

Q3: How long has the Mara family owned the Giants?

The Mara family has owned the New York Giants since 1925, making it one of the NFL’s longest family legacies.

Q4: Who is the Giants’ current starting quarterback?

Head coach Brian Daboll recently named rookie Jaxson Dart as the Giants’ starting quarterback.

Q5: How old is John Mara?

John Mara is 70 years old as of September 2025.

References

Associated Press. (2025). “Giants owner John Mara feeling ‘strong and optimistic’ after cancer diagnosis.” September 29, 2025.

Reuters. (2025). “New York Giants owner John Mara reveals cancer diagnosis, plans to stay active with team.” September 29, 2025.

BBC News. (2025). “New York Giants president John Mara announces cancer diagnosis.” September 29, 2025.