Manchester City produced a burst of three goals in 18 first-half minutes as they beat Blackburn 3-1, leaving Rovers still unsure of survival.Felipe Caicedo’s scruffy effort was followed by a Brazilian one-two as Robinho drilled home his 15th of the season and in-form Elano stroked home a penalty.The victory at Eastlands on Saturday keeps City well in the hunt for another bout of European action next season, ensuring not only Liverpool have a vested interest in them returning from Old Trafford with another three points next Sunday.However, Blues boss Mark Hughes will take no pleasure in the continuing plight of his old club, even though Blackburn‘s six-point advantage on north-east duo Middlesbrough and Newcastle looks fairly secure.At times this season City have looked like a team with a purpose, at others as though they are wandering around aimlessly desperately requiring direction.Yet the surge Hughes has been predicting since the New Year has finally arrived, just in time it seems to secure European football next season.In fairness, there can be few more accommodating visitors to Eastlands than Blackburn, whose injury-hit troops dragged themselves to the brink of safety last weekend, only to suffer the kind of defeat that leaves them vulnerable…