Bradley made what appeared to be a breakthrough game with a team-high five catches for a team-high 88 yards before the injury.
"Hopefully he'll be all right,'' Smith said.
Gage had a 25-yard catch in the second quarter after Bradley's injury to set up a field goal, in addition to the clutch 22-yarder.
Gage had been inactive last week, but was active Sunday due to receiver Bernard Berrian's thumb surgery. Gage hadn't made a catch since Week 2 of the regular season.
"I'll definitely be ready now,'' Gage said. "It's a whole new ballgame for me, so I'll definitely be ready.''
Cedric Benson's 25-yard overtime run helped get the Bears out of a hole and was his first big contribution since gaining 49 yards in Week 2 against the Lions.
"That's the Cedric that we know right there,'' Smith said. "It was good to see him have some success running the football.''
"It was a big boost for me, for the team,'' Benson said. "I think, with it being overtime and tied up and them calling my number is what I needed.''
Jones gained 72 yards, his lowest total since the first game. He said the rib injury he suffered wouldn't keep him sidelined long, if at all. He also is still bothered by a knee injury.
"It will get better, but it's not going to heal 100 percent if you're constantly going out every week pounding it,'' Jones said of the knee injury. "That's just something I have to deal with.
"Every running back has some situation whether it's an ankle, a rib a knee a shoulder, where they have to play with it every week. Mine just happened to be my knee and now its my rib.''
PLAYING IT SAFE
Coach Lovie Smith opted for the conservative approach and played for overtime at the end of regulation with the team backed up to its 1-yard line in the final two minutes.
"They had us backed up quite a bit,'' Smith said. "We were thinking then about overtime. We knew we had to get at least one first down to get the ball out and we were able to do that.''
Orton hit Gage for a 22-yard completion, but the Bears didn't use a timeout when they had 59 seconds left after the play.
"We had weathered the storm. It just seemed right,'' Smith said. "I have a good feeling about this team. It just felt right.''
Orton felt the same way.
"That's a tough gig to go 97 yards at the end of the game and I think we had two timeouts,'' he said.
BACK TO THE BENCH
Defensive end Michael Haynes returned to the game day inactive list. Haynes was active the previous game against Baltimore and got in on a sack.
Wide receiver Bernard Berrian, guard Ruben Brown and quarterback Rex Grossman, who are injured, were also inactive. Other inactives were quarterback Kurt Kittner, cornerback cornerbacks Rashied Davis and Daven Holly and safety Brandon McGowan.
The Bears' win came by the same score they lost to Detroit by last year on a disputed call. The quarterback who threw Mike Brown's tipped interception return for a touchdown in overtime at Soldier Field in a 37-31 2001 Bears win over San Francisco was also Jeff Garcia.