Transcript for Tom Brady Denies Deflating Footballs, Not Questioned by NFL
We'll move to the super bowl scandal. Tom Brady you saw took questions yesterday claimed he couldn't tell the footballs had been deflated and surprising everyone by saying he hadn't yet been questioned by the NFL. ABC's Paula Faris outside Gillette stadium in foxborough with the latest. Good morning, Paula. Reporter: Good morning, to you, George. Tom Brady was peppered with questions for roughly 45 minutes yesterday. Wow, some of those were extremely direct including is he a cheater. Brady repeatedly denied involvement in deflate-gate but some of his peers are not buying his story. With the eyes of the world on him, Tom Brady stepped up to the podium denying any knowledge of deflate-gate. I don't know what happened. I mean I -- I have no explanation for it. Reporter: He admitted to picking out the footballs he wants before the game but says he then leaves it entirely up to the equipment managers to break them in. I don't want anyone touching the balls after that. I don't want anyone rubbing them, you know, putting any air in them, taking any air out. Reporter: He claims he did notice. I sumed they were exactly the first half, second half. Reporter: But also expressed a preference for footballs at a very specific air pressure. I like them at the way that I like them which is at 12.5. I mean to me that's a perfect grip for the football. Reporter: Former pro bowl quarterback mark Brunell is one of many associated with the NFL who are expressing doubt about Brady's claims. I don't believe there is an equipment manager in the NFL that would on his own initiative deflate a ball without the starting quarterback's approval. Reporter: Also surprising, Brady revealing league officials who have been investigating the claim since Monday have not even spoken with him yet. But, you know, they may. They may. I think that's their -- I think that's obviously their choice. Reporter: Why not speak to the man front and center of the controversy right away? The NFL telling ABC news they are not commenting. During that 30-minute press conference Brady fielding some tough questions. Is Tom Brady a cheater? I don't believe so. I mean I feel like I've always played within the rules. Reporter: At times composed. At times doo defensive. This is isn't Isis. This isn't -- no one is dying. But, you know, we'll get through this. What do you say to the fans of the patriot nation. What would you like me to say. Reporter: His head coach, bill belichick, speaking out hours earlier, also claiming he was unaware of any improprieties. I have never talked to any player, staff member about football air pressure. Reporter: But telling the assembled media only Brady would know how he likes his footballs. So here's what we know. 11 of those 12 footballs were tampered with. We just don't know who did it. Will the league come down hard on the patriots as some are calling for them to do? Well, you just heard it. As of yesterday the league hasn't even contacted Brady regarding this investigation, George. Yeah, that was pretty stunning. Okay, Paula, let's so much. Let's talk to Jesse palmer from ESPN. You played quarterback. We heard him say he liked 12.5 but didn't notice it wasn't 2.5. I wouldn't believe that. Quarterbacks so particular about the footballs they throw in these football games. It's kind of like your Starbucks order. Some like brand-new footballs. Some like worn in and some like inflated, deflated. I don't know if there's a quarterback that could say, that's about 12.5 pounds per square inch of air in that football but it is a feel thing and certainly in my opinion Tom Brady would have known those footballs were deflated. What could have happened to the football before it got to him after he chose the 12, gave them to the equipment manager? You know, they get inspected by referees two hours and 15 minutes prior to the game. Even in that window before the game, the equipment staff would have had access to the footballs. Tom Brady could have had access to them again inside the locker room 0 minutes before the start of the game. He wouldn't be -- Certainly Tom Brady, absolutely did not put the pin but somebody did, because, again, 11 of the 12 being deflated is not just an abnormality. What is going on with the NFL, haven't questioned him yet. Why wouldn't you go to the source? Ultimately they know before every single game, quarterbacks get to pick the footballs they want to use. Usually it happens the day before the football game. That to me is the most surprising thing that they had not yet questioned him or asked -- Leads a lot to say they're slow-walking this and want to get through the game and whatever happens after the game happens. It will be a huge distraction for the new England patriots, something they have to deal with with respect to their integrity, with respect to their legacies and bill belichick and Tom Brady, you're right. This is right now normally talking about Xs and Os on the field what's going to happen. Remarkable to see this blow up. You've got denials from Brady and denials from belichick. Are we ever going to know? Unless you have a picture or video evidence with a needle inside the football taking air out I don't think you'll ever know fully what happened. Thanks so much. Thank you.
This transcript has been automatically generated and may not be 100% accurate.