Manchester City could be three up in 30 minutes if we are not careful, says Napoli coach

Napoli coach Maurizio Sarri has warned his team of the “devastating” way Champions League opponents Manchester City stun their rivals with early goals.Sarri, whose own side conceded twice in the opening quarter of one hour approximately inside their first meeting as you go along to a 2-1 defeat fourteen days ago, jokingly asked if Wednesday's Group C match could begin in the 21st minute.

“We have to try to push them out into deep water, otherwise they are probably be one or two goals ahead after 30 minutes,” he told reporters on Tuesday.“They have a devastating force of impact on matches and they've scored so many of the goals in the very first 20 minutes. Their matches which I have seen have all been over by the 70th minute.”