"I knew from Day One that coming back and playing another year, there was a possibility of getting hurt," he said. "But I felt like the benefits of coming back and going through another year of college ... outweighed the risk of coming back and getting hurt.
"I still feel I made the right decision. I can't change that decision. So there’s really no reason to look back and second-guess myself now. I mean, money's not everything. Some people, they think it is. But to me, there are a lot more things. I dreamed about coming to Oklahoma and playing football. We didn't have a pro team in Oklahoma, so this was like my pro team.
"My experience here has been unbelievable. I felt like coming back and adding to my experience would be a great thing for me."
Bradford's decision to return also was based partly on making another run at a national championship. But he said shelving this season has not entered his mind despite the Sooners’ two losses.
"You say the national championship's out of the picture, but what happens if we win nine straight games and we win the Big 12?" he posed. "You know, there's still a possibility to win another Big 12 championship and become the first team to win four straight Big 12 titles.
"I mean, I still think there's a lot in front of this team. It would be extremely selfish for me to say, 'Oh, the possibility of a national championship is slim now, so why come back?’
"I've spent so many hours with these guys, and for me to say or even think about something like that is just extremely selfish."
Bradford said the uncertainty about his return has been "one of the most frustrating things about it" and that his NFL future is "a concern."