Mario Balotelli doubtful for Manchester City's game with Real Madrid

Striker Mario Balotelli is doubtful for Manchester City's Champions League Group D clash against Real Madrid at the Etihad Stadium on Wednesday due to a back problem.
                                             
Left-back Gael Clichy is almost certainly out after suffering an ankle injury in the 5-0 win over Aston Villa on Saturday. Midfielder James Milner (hamstring) could return but Jack Rodwell (hamstring) is unlikely to feature despite returning to training and right-back Micah Richards (knee) and centre-back Kolo Toure (ineligible) are out.