Juventus coach Claudio Ranieri has ruled out selling Tiago in January.
He said: "Tiago has shaken off the pressure of playing for this club and understood the 4-4-2 now. He had got a little depressed, but in recent weeks he has given a notable contribution and the doors are always open.
"I'd say his career path at Juve has been similar to that of Nicola Legrottaglie. I think Tiago will remain until the end of the season."