According to a chapter in the forthcoming Playmakers by Mike Florio of ProFootballTalk, the NFL ordered that data collected during random air-pressure spot-checks of footballs at halftime of games during the 2015 season in the wake of the Deflategate saga be destroyed because it would have hurt the league's case against Tom Brady and the Patriots.

Per Florio, "numerous" measurements taken at halftime of games during the 2015 season resulted in numbers that were outside of the permitted range of 12.5 to 13.5 psi. That finding was in line with a standard the Patriots often cited (and amazingly still do) to explain the psi level in the team's footballs during the 2014 AFC Championship Game against the Colts -- the Ideal Gas Law, which theorizes pressure inside balls will rise on warm days and fall on cold days.

Since those findings did not help the league's case during the 18-month legal battle that was Deflategate, which resulted in Tom Brady being suspended for four games and the Patriots losing first- and fourth-round draft picks in addition to being fined $1 million, NFL general counsel Jeff Pash ordered the air-pressure spot-check numbers to be expunged.

"Why would the league delete the numbers? It's simple," Florio writes. "For cold days, the numbers were too close to the actual numbers generated by the New England footballs at halftime of the playoff game against the Colts. Which means that the numbers generated at halftime of the 2015 AFC Championship were not evidence of cheating, but of the normal operation of air pressure inside a rubber bladder when the temperature drops. Just as it was expected. The effort to test the operation of air pressure in footballs in the season played after the game in question (an effort the NFL had never before undertaken) resulted in numbers that were inconveniently similar to the numbers haphazardly collected in a game of 'gotcha' that was instigated against the Patriots. Thus, those numbers never saw -- and never will see -- the light of day. The NFL made sure of that."