Today before the Phillies' loss to the Miami Marlins, Phillies General Manager Ruben Amaro met with reporters. They learned that Chase Utley would not play third base before season's end, Scott Franzke reported on the Phillies radio broadcast.
The reason was that there simply was not enough time to determine anything. Going into tonight the Phillies had just six games remaining.
This does not preclude a move in the future.