"We lacked focus at the start and conceded early on which made it difficult for us," FourFourTwo quotes Ranieri as saying. "It was very difficult to break down a side so compact in defence. They are a team that know only too well how to close down space. We got hit by counter-attacks and had no balance in midfield.
"It was concentration that we lacked tonight. I watched Northern Ireland's matches against Romania and the Faroe Islands and told my players to beware of set-pieces and counter-attacks – and that's how Northern Ireland scored. We conceded in Finland from a counter-attack and it happened again tonight."
Group F leaders Northern Ireland return to action next month with a trip to face Romania.