Bills running back Fred Jackson was carted off the field Sunday with a groin injury, but after his MRI results came back Sunday night he's hoping to be back on the field sooner than expected. Meanwhile fellow back C.J. Spiller underwent surgery for his injury. Making his weekly appearance on Bills flagship station WGR Sportsradio 550 Monday morning, Jackson shed some light on his situation moving forward.

"I know I'm going to do everything that I can rehab-wise to get back as soon as possible," said Jackson on the Howard Simon show. "I know we have a great training staff and the team doctors do a great job and they'll do everything they can to get me back out there as soon as possible. I like to think of myself as someone that can get back before typical (time frames). It's going to be on me to get in there and rehab and see the team doctors and do what it is they want me to do and hopefully I'll be able to get back a lot sooner than (normal)."

Head coach Doug Marrone did not want to put a timetable on Jackson's injury.

I'm just going to see how he is," said Marrone. "I know he was better (Monday) than they expected."

Jackson sustained the groin injury on a 3rd-and-1 carry at the end of the first quarter and went down shortly after receiving the hand-off.

"I took the hand-off from Kyle (Orton) and as soon as I took the hand-off and I felt the pop in my groin," said Jackson. "They said I pulled it off the bone about a centimeter. That's what the popping sensation was. Right after I took the hand-off it popped and I wasn't able to move. It's not as bad as it could've been. I don't need surgery or anything like that, so it's just about rehabbing and getting back as soon as I can."

"He did it before receiving the hand-off on the short yardage play," said Marrone. "You could see it on the film."

The veteran back said he has not had this kind of injury before in his career. Known as a player who has a high tolerance for pain, Jackson will be pushing to return to the field sooner rather than later.

"This was the first (groin injury) and that was one of the scariest things about it," he said. "When you do something new and you have no idea what it is you've done that's what scares you the most. Fortunately talking to the doctors they said it's not as bad as it could've been. We've still got to cover a lot of road to try to figure out how long I'll be out and do whatever I can to get back as soon as possible."

Spiller has surgery

Marrone confirmed that C.J. Spiller underwent surgery Monday for an injured collar bone suffered in the second quarter of Sunday's game at the end of a 53-yard run. Buffalo's head coach would not call the injury season-ending. He'd prefer to wait to hear from the doctors who performed the procedure on Spiller first.

"It all depends on what the doctor tells us," Marrone said. "If it's something that he can come back from earlier then probably not (I-R), but if it's something where he can't come back earlier than that… it depends how long it is really. When the doctor tells us exactly what he thinks after going in there then I'll discuss that with (general manager) Doug (Whaley). But everything is on the table all the time with all the injuries."

"We've been in contact with him," said Jackson of he and his fellow running backs. "We have a thread that all the running backs are on and he's in pretty decent spirits for what's going on. We'll see what happens."

Already in the locker room after his injury at the close of the first quarter, Jackson was there when C.J. Spiller arrived about 30 minutes later after his bad fall on his left shoulder.

"I saw him as soon as he came in," said Jackson. "It was one of those things where the injury itself kind of let him know how significant it was. I really didn't say anything to him. I just kind of gave him a big hug and put my around him and told him that I was there for him. It's one of those things where you don't really have the right words to say. The best thing is to hug him and let him know he's not going through it alone."