The Spaniard suffered a calf injury against Leeds last weekend and Gus Poyet has ruled him out of Saturday's clash with Wolves and both upcoming play-off legs.
"If we want to see Bruno we will have to get through to the final," said Poyet. "He will 100 per cent be fit if we reach the final but he will not be available for either of the semi-final games.
"Firstly because of the injury itself, which won't heal in time, then because I wouldn't like to start a semi-final with a player who I might have to change after an hour, especially if they are in the back four.
"It's a small tear in his calf again, which is similar to what he had before, so we cannot risk him, even though he is a top-quality player and has top-class experience."