Ager was converted into a point guard with the Wolves missing Jonny Flynn and Luke Ridnour to injuries. Ager averaged 3.8 points in four games this season, playing sparsely just to rest Sebastian Telfair in the last two games.
The Timberwolves worked out four free-agent point guards when they were in Sacramento to face the Kings and likely will sign one to a contract soon.
Ridnour is expected to be out another five days or so with a strained left hamstring. Flynn has not played this season because of hip surgery but hopes to return to the court by the end of the month.
Minnesota announced the roster move on Thursday.