New Jersey State Police Sgt. Adam Grossman told the New York Post the unidentified man toppled from an escalator onto a metal stage near the stadium's Verizon gate.
Grossman said the man suffered severe head injuries and was airlifted to Hackensack University Medical Center in critical condition.
The accident happened 2 minutes after Eli Manning had connected with Victor Cruz on a 77-yard scoring pass with 1:13 left in the game, giving the Giants the lead, officials said.
Swim Week Miami Beach 2014 [PHOTOS]