Continuing hamstring trouble might keep Indianapolis running back Joseph Addai from playing in the Colts game in Tennessee Sunday.
Two weeks ago, Addai missed a game in Cincinnati with a hamstring injury. He returned last Sunday against New Orleans, but had to leave that game as well with a different hamstring injury.
"He is at this point really coming along, but doctors will give us the clear go-ahead here shortly at some point in time'" Caldwell said, according to the Indianapolis Star.
"Obviously, if Joe can go he'll go. If not, it will be the two guys who have been doing it for us thus far."
Carter leads the team with 259 yards and two TDs. Addai has 257 yards on 58 carries, a 4.4-yard average with 1 TD.
"He is making pretty good progress, steady strides," Caldwell said of Carter. "He's certainly getting a lot more familiar with playing in this league and what it takes. He's been able to put some pretty good runs together. And in terms of his pass protection and those type things, he's been getting better and better each week."
Brown has 120 yards on 22 carries, a team-best 5.5-yard average, with one TD.