The NFL claims to have found no issues with the inflation of footballs while checking at various games during the 2015 season.

“It wasn’t a research study. They simply were spot checks. There were no violations this year. We’re pleased that we haven’t had any violations and we continue the work, obviously, to consistently and importantly enforce the integrity of the game and the rules that are designed to protect it,” Goodell said.

Some scientists have come forward to say that the low PSI measurements on the footballs used by the Patriots in last year’s AFC Championship Game could have simply been a result of the footballs being used during a game played in cold weather. 

The NFL will continue to pursue their appeal of their four-game suspension for Tom Brady.

“I have great admiration for Tom,” Goodell said. “I know him personally. Obviously I respect his playing ability – he’s an extraordinary player – a sure Hall of Famer and I have nothing but admiration for him. But I have to make sure that we continue to do the things that are necessary to protect the integrity of the game and I will do that without compromise.”