Super Bowl-winning quarterback Joe Theismann defended New England Patriots coach Bill Belichick, arguing that the controversy over the team's deflated balls is overblown. 

At a press conference this morning, Belichick said he "no knowledge whatsoever" about the under-inflated balls until Monday morning. 

He said he could give "no explanation" for how the balls used by Tom Brady became under-inflated before the AFC Championship Game.

At one point, a reporter asked for his reaction to those who question his integrity. Belichick refused to answer that specifically. 

Theismann said he believes Belichick "100 percent" and does not dispute that the coach had no idea about the game balls. 

"For someone to ask a question about his integrity, I have a problem with that. I don't think it warrants this kind of scrutiny, but then again we're in this age in society where everything gets scrutinized this closely," he said on "America's Newsroom." 

Theismann went to a training facility this week to test out footballs that were normally inflated and others that were deflated. 

"I found no discernible difference to me in being able to hold the football. You could feel it a little bit, but you're talking about two pounds per square inch. ... It didn't help me at all," he said.

Brady is expected to answer questions today or tomorrow. Theismann said it'd be "hard to believe" that 11 of the 12 balls would be deflated without Brady being involved.

Watch his analysis in the clip above.