Jose Mourinho sparked speculation about his future on Tuesday on the eve of his side Inter Milan's Champions League quarterfinal clash with CSKA Moscow by declaring he was unhappy with Italian football.

The charismatic but unpredictable Portuguese coach, who previously managed English Premier League giants Chelsea and guided Porto to the 2004 Champions League trophy, told Sky Sports he did not like Italian football.

"It is a simple situation, I am very happy," said the 47-year-old, who is in his second season with Inter. "I am happy at Inter but unhappy with Italian football.

"I always speak with my heart but if I spoke with my heart now about Serie A I would be suspended."

Mourinho, who has not enamored himself with the Italian football authorities, earning himself four touchline bans, made it clear why he was unhappy.

"Because I do not like it (Italian football) and because they don't like me."

Adding unhappiness to his tenure in Italy was Inter's teenage forward Mario Balotelli, who said he was refusing to back down in a row with the coach, which has led to him being frozen out of action for a month.

Mourinho again left Balotelli out of his squad for the match against CSKA Moscow, amid media reports the Portuguese is waiting for an apology for an incident in training.

"I'm not so stupid to miss five matches (unnecessarily). If an apology was due I would have given it before," Balotelli told Italian media.

"Being as I'm right, I am not apologizing."

The row is the latest in a series of run-ins between Mourinho and the talented 19-year-old, who has been linked to Premier League side Arsenal and Inter's city rivals AC Milan.