Disgraced ex-Manchester City chief executive Garry Cook welcomed back to Etihad Stadium for title decider QPR manager Mark Hughes's frosty relationship with Cook, the man who sacked him as City manager in December 2009, could also lead to boardroom friction, with Hughes having sent back an unopened crate of wine which his former boss had sent to the Welshman following his appointed as Fulham manager two years ago. Hughes's successor, Roberto Mancini, will become the first City manager since Joe Mercer in 1968 to deliver the league title to the club if his team defeats QPR on Sunday. And despite claims by Manchester United manager Sir Alex Ferguson that Mancini's "Italian mentality" has led to City adopting negative tactics this season, the City manager insists that his team will deserve the title for their attacking football. "The winners always deserve to win," Mancini said. We have played the better football, even if we don't win. But I agree with him [Ferguson]. I'm Italian and I can't change my mentality. He's Scottish, he's the best manager in the world and I agree with him, but it's important that we score enough goals to win the title. That's more important. We have played for six months and played very well, the best football in the Premier League, but it's impossible to play well every game for one year. We had one month when we had a problem. We conceded easy goals and didn't score. That's normal. Maybe after Sunday we still won't have the title, but we will have played the best football. Mancini's father, Aldo, is set to attend the game against QPR after being unwell for the majority of this season, but the City manager admits his presence is not guaranteed to bring him luck. Mancini said: "He is very happy to be here for this game, but I hope that he will bring us the luck he did when he came to see the Napoli game [1-1 draw]. I hope we can win and I am happy he is here, because we are not in Italy. I understand what it will mean to win the title here. We haven't won the title for almost 50 years and we are in a city where our cousins win every year. That is very difficult for our supporters. I hope I can change this.