Although Brady Sr. is happy his son plays football, he says he never stops worrying when watching his games. Telling Yahoo! Sports, "That never goes away. The answer is yes, I'm concerned, Tom claims that he's only been dinged once or twice, but I don't know how forthright he's being. He's not gonna tell us, as his parents, anything negative that's going on. I wouldn't be shocked that he would hide that." I'm sure Tom Brady's father isn't the only NFL parent with concerns.