The NFL found no issues with football inflation during the course of the 2015 season, Commissioner Roger Goodell said.
Speaking on The Rich Eisen Show on Tuesday, Goodell covered a number of topics, including confirming that the NFL did not conduct research on how footballs respond to air pressure, but rather simply to ensure the teams were following the proper guidelines.
The spot checks found no PSI violations, Goodell said.
There will likely be more questions on this topic when the Commissioner meets with the media later this week.
On if the NFL conducted a scientific test to measure footballs and PSI throughout this season:"No, Rich, what the league did this year was what we do with a lot of rules and policies designed to protect the integrity of the game, and that's to create a deterrent effect. We do spot checks to prevent and make sure the clubs understand that we're watching these issues. 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."
On if he has had any contact with Tom Brady:"My first obligation, as you know Rich, is to uphold the integrity of the game. That's to uphold the rules of the game and make sure all 32 teams are operating under the same rules, all players are operating under the same rules and you do that on a consistent basis. I have great admiration for Tom. 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."
You can read the Commissioner's entire conversation with Eisen at NFLCommunications.com