INDIANAPOLIS -- Colts rookie quarterback Anthony Richardson threw one touchdown pass and had one touchdown run in his regular-season debut Sunday. He also learned one invaluable lesson.
His takeaway, Richardson said after a 31-21 loss to the Jacksonville Jaguars, was "how different it is from college. Every possession matters. Every down matters. Every play matters. You can't just take off one play because you think it's all right. You can't take off one quarter because you think you got the lead and you think you're going to get a W. Every play, every detail, everything matters in this league.