SAN JOSE, Calif. — Be forewarned. Uncle John will not be playing around. So says the nephew about John Harbaugh and what awaits Giants players as they get together in the spring and learn what their new head coach is all about. “I would say you’re gonna hit the ground running,’’ Jay Harbaugh said Wednesday during the Seahawks media session in advance of Super Bowl 2026. “There’s gonna be a focus on real substance, football and all the things that help you win and none of the things that don’t. “