“It’s all about the grip,” one of the men said. “For a quarterback on a very cold and rainy day, if he’s gripping a rock-hard football, that’s different than gripping a football that is softer and has some give to it. If you take a pound out of the footballs, that could be a significant difference in handling the ball.”
Last year, I was in Chicago for a story for The MMQB on a Week in the Life of an Officiating Crew. I saw the men on the crew work at inflating the game balls to just the right pressure. In the NFL, footballs have to be filled to a pressure of 12.5 pounds to 13.5 pounds per square inch of air. Each week, teams customarily would be able to prepare 12 footballs for the game. When I say “prepare,” I mean equipments guys and/or ballboys would take the balls before the game and rub the shine and slipperiness off the balls, so they’d be easier for quarterbacks to grip and receivers to catch and running backs to hold, and then return them to the officials in the officials’ locker room.
Each team would be able to condition six “K” balls, or balls used only by the team’s punter and kicker, for 45 minutes on the day of the game. During the week before the game, each team gets to condition 12 balls for use by its offensive team. In the event of a game with bad weather in the forecast, the NFL would mandate 24 balls be conditioned during the week of the game by each side—12 to be used in the first and the other 12, kept in the locker room at halftime, to be used in the second half. I do not know for sure that this was such a game on Sunday, but I can assume, with the stakes involved and the bad weather Sunday in the Foxboro area, there were probably 24 balls conditioned by each team.
Before the game, those 12 or 24 balls would have been returned to the officiating crew in the officials locker room. Each ball would be weighed and measured so that 12.5 to 13.5 pounds of pressure would be found in each football. Then the balls would be put in a zipped-up ball bag and, just before the start of the game, be handed to the ballboys working the sidelines.