Madrid were beaten 4-2 by Manchester United at Old Trafford . Defeat leaves City fourth in Premier League , four points behind Man United . Man City desperately need to strengthen an ageing squad in the summer . And it remains to be see whether City will stick with Manuel Pellegrini . But the biggest challenge could be keeping hold of Sergio Aguero . Argentine scored a brace against United to take his tally for City to 100 .
Manchester City were beaten 4-2 by Manchester United at Old Trafford . Defeat leaves City fourth in Premier League , four points behind Man United . Man City desperately need to strengthen an ageing squad in the summer . And it remains to be see whether City will stick with Manuel Pellegrini . But the biggest challenge could be keeping hold of Sergio Aguero . Argentine scored a brace against United to take his tally for City to 100 .