Jose Mourinho is backing former club Chelsea to exact their revenge on Liverpool in the Champions League having twice been dumped out of the semi-finals by the Merseysiders. Mourinho lost to Rafael Benitez's side in the last four in 2005 and 2007 and despite his shock departure from Stamford Bridge in September the Portuguese still wants his ex-players to win - even though he admits it is too close to call. 'I don't know who will win,' he said. 'I think always between big teams the result is a question mark. I want Chelsea,' Mourinho told The Times. 'Mathematically it's possible. I want them to win. Yes, for the fans, for the players, yes, for the friends I have in the club. 'And when I say friends I include the board. I have no problems with Peter [Kenyon, the chief executive] or Roman [Abramovich, the owner]. I always support my friends.' Mourinho has been linked with a return to management with Inter Milan and he confirmed he would be back in employment come the summer. 'I will be somewhere next season,' he said. 'I've not agreed anything but it's a good time for me for many reasons. 'I have no contact with clubs. They know where I am. They know the kind of clubs I want, the level of challenge I want. When the leagues finish that's when they make decisions. 'I had some good options this month. Some good clubs and some good countries.'