New York Giants owner John Mara has announced that he has been diagnosed with cancer and is undergoing treatment, but remains optimistic and committed to staying involved with the team during his recovery.

Mara, 70 years old, did not specify the type or stage of his cancer but expressed feeling strong and grateful for support from medical professionals, family, and colleagues.

He requested privacy for himself and his family while highlighting the support he has received from his personal, professional, and medical circles.

Despite his health challenges, Mara has been actively involved with the Giants, including attending recent games and visiting the team facility, demonstrating his ongoing commitment.

The Giants have entrusted football operations to General Manager Joe Schoen and Head Coach Brian Daboll, who have been leading efforts to rebuild the team since their hiring in 2022.

Mara, who became the Giants owner in 2005 and has served as president and CEO since then, played a key role in constructing MetLife Stadium and has a deep family history in the franchise.

Under Mara's leadership, the Giants experienced a resurgence, including a playoff appearance in 2022, but have faced recent challenges with player injuries and team performance.

Mara has won two Super Bowls with the Giants and also chairs the NFL’s management council, serving on the league’s competition committee for over twenty years.

He has a long-standing career with the Giants, starting in 1991, and comes from a family with deep roots in the franchise, dating back to its founding in 1925.

Mara was present at MetLife Stadium during the Giants' first win of the season on September 28, 2025, supporting the team and showing his active involvement.

He was also on the field during the game, which marked a positive turn after a series of losses, and continues to visit the team regularly.

The Giants community and fans have responded with widespread support and well-wishes for Mara’s health, reflecting his respected leadership and influence.