Not even a win will stop Grant moving on next season, with West Ham his likely destination as a replacement for axed manager Gianfranco Zola.
Grant's actress wife Tzofit said: "He is nicknamed the spirit of Pompey. He didn't run away when it was tough, he didn't receive half the money he was owed.
"If West Ham want him, he will go there. He has loads of offers and knows about all of them.
"I don't really know what is done and dusted. Everything can change.
"But he wants to stay in England."