Rangnick says the winger is definitely out of their clash with Brentford.
On whether Sancho needs to have his tonsils out, Rangnick said: "It could happen. He has an inflammation on his tonsils and also had a high temperature. Hopefully they can get hold of that inflammation and if the tonsils have to be taken out it can happen at the end of the season."
On whether his season is over, the caretaker manager added: "Since the last game is three weeks [away], for the next two games it's unlikely."