The running game disappeared with Greene going out and Jones being injured, the defense let Manning pass all over them, and they missed 2 field goals. Sanchez was the least of their concerns that day.
Sanchez played great that game, especially for a rookie in the AFCCG.
You can't argue that he doesn't play his best in big games.
Whether it's the playoffs in the NFL or the Rose Bowl in college, it's been consistent throughout his football career so far, hopefully it continues.