Sergio Aguero Manchester - Agencies Manchester City striker Sergio Aguero has backed his teammates to prove how good they are, ahead of Wednesday\'s do-or-die Champions League game against Real Madrid. The Eastlands club host Jose Mourinho\'s men knowing nothing less than a victory will do, if they are to keep their European dream alive. Aguero told the club\'s official website: \"We should never give up. Where there\'s a will, there\'s a way, right? We must win this game. We have a great team, I have no doubt about it and now it is time for us to show just how good we are.\" City coach Roberto Mancini is hoping his side can overcome the Spaniards in what will be Mourinho\'s 100th match in the Champions League. \"We want to do a good job. We will have not much of a chance to go through, but we will try,\" he said. The tie will also see Cristiano Ronaldo return to play in Manchester for the first time since leaving Manchester United in 2009. City are hoping to emulate Lokomotiv Moscow and Porto in reaching the last 16 from such a hopeless position after four group matches. Even if they beat the Spanish giants at the Etihad, they will still need to win at Borussia Dortmund in their final group game and hope other results go their way.