Manchester City are set to win the competition as they take on minnows Stoke City in the final on May 14.
But they still are keen to be able to call upon Tevez’s services, and Mancini said: “He has scored more than 20 goals this season and he wants to do everything he can to play. We have another week and we need to see what happens but, most of all, we need him to have a match. If Carlos does not play against Tottenham, he cannot play in the final. I need every player 200% for the final. I cannot play with one player who is 50%. It would be impossible.”
