Here is the statement on Peyton Manning's status from the Colts' communication department:
During the last week, the rate of improvement in Peyton’s rehabilitation process slowed. Over the weekend Peyton experienced soreness in his back. It was originally thought to be a normal reaction to his rehabilitation regimen. When the soreness persisted, the Colts medical team decided to initiate diagnostic tests and to consult with a number of specialists around the country who have been involved in Peyton’s case from the outset. That process continues. As a result of the most recent development the doctors have decided that Peyton will not practice. His participation therefore, in Sunday’s game versus Houston will likely be doubtful. We will update his playing status as required by NFL policy as the week goes on.
At the conclusion of the diagnostic process, if there are any new developments in the prognosis which we outlined for Peyton at the start of training camp we will report them. As of now Peyton continues to deal with a complicated neurological recovery, the end date of which is unpredictable.
As was stated at the outset, it serves no useful purpose to speculate about hypothetical outcomes. When and if there are concrete medical facts to report we will do so.
Colts vice president Bill Polian released a statement regarding coach Jim Tressel:
After the announcement of Coach Jim Tressel's agreement to join the Colts as a game day consultant, questions were raised with respect to the equity of his appointment as opposed to suspensions being served this season by present and former Ohio State players.
Over the weekend Coach Tressel, Mr. Irsay, Coach Caldwell and I had a discussion of the issue. In addition, we had a conversation with league officials to apprise them of the details of Coach Tressel’s employment and the issues we were reviewing.
At Coach Tressel's suggestion, and with Mr. Irsay’s concurrence and support, we have decided to begin Coach Tressel’s employment effective with our seventh regular season game. We have informed the league office of our decision and expect that they will be supportive of it.
We are very happy Coach Tressel will be joining us.