Three people remained hospitalized Sunday after being injured when an escalator malfunctioned Saturday night at Giants Stadium after the Patriots' 38-35 victory over the Giants gave New England a 16-0 regular season. The escalator at Gate A apparently failed at the bottom steps, state police Lt. Jim Crann said. The escalator runs from the stadium's upper tier to the ground level, and Crann said it appeared that some bottom steps became bent, causing some fans to sustain foot and leg injuries. Seven people were injured, according to James Minish, executive vice president of facilities for the New Jersey Sports & Exposition Authority, which operates the stadium. Two of the seven were treated at the stadium, he said. Five people were taken to Hackensack University Medical Center after the game, according to hospital spokeswoman Nancy Radwin.