Bradford looked due to make an important return to the Rams this campaign, but picked up the season-ending injury during a practice fixture at the end of August.
"You know, I can't focus on that right now," Bradford said about his future, according to the St Louis Post-Dispatch.
"I think it's a little too soon. I haven't even thought that far ahead. It's still pretty hard to comprehend [the injury] right now. I think we finally had everything going in the right direction around here... I was just so excited to get back out on the field and play with these guys.
"And from what we were able to do in OTAs and in training camp. I guess not knowing how it would've turned out this year is probably something that's gonna eat me up for a while."
The Rams get their new NFL campaign underway when they take on the Minnesota Vikings on Sunday.