The Indianapolis Colts will be without rookie running back Donald Brown for 2-3 weeks due to a deep shoulder contusion.  Brown has carried the ball 46 times for 212 yards (4.6 ypc) with 2 TD runs this season and he has also caught 7 passes for 138 yards (19.7 avg) so far this season.  Joseph Addai will likely see his workload increase if he’s up to it.  Addai has carried the ball 82 times for 274 yards (3.3 ypc) with 4 TD runs and he has also caught 27 passes for 156 yards (5.8 avg) with 1 TD grab.  Chad Simpson will get more playing time as Addai’s new back up with Brown out of action.  He has carried the ball 6 times for 44 yards (7.3 ypc) with 1 TD run and he has also caught 1 pass for 2 yards.  This is a big chance for Simpson to really show what he can do.