Mario Balotelli, who has been frozen out for a month after a disagreement with the coach, is unlikely to play at the San Siro despite four players, including forward Samuel Eto'o, being suspended.
Brazilian defenders Lucio and Maicon and captain Javier Zanetti are also suspended, while playmaker Wesley Sneijder is a doubt because of an ankle problem he suffered in Wednesday's 1-0 win over CSKA Moscow in their Champions League quarter-final first leg.
"I don't think he'll be called up for Saturday," Mourinho told reporters after the CSKA game. "It doesn't depend on me, it depends on Mario.
"It's not an issue between me and him, but between the club and the lad. He knows what he has to say. He either says it or he doesn't. Eto'o was right when he said the team comes before any individual."
Inter's lead has been cut from nine points in mid-February after winning just two of their last nine league games.
Second-placed Roma are expected to have captain Francesco Totti back in their starting lineup at Bari on Saturday after he came on as a late substitute in last week's 2-1 victory over Inter following a knee injury.
Midfielder Mathieu Flamini is suspended this weekend and Leonardo's injury list still includes centre back Alessandro Nesta and forward Alexandre Pato.
