Celtic manager Neil Lennon has insisted that although his side played better in the second half, he was disappointed with aspects of their performance in the 5-2 win over Kilmarnock.
The defending champions finished well but saw a three-goal lead almost wiped out by their opponents before the interval.
"I thought we were sloppy at times and a wee bit pedestrian at the start. Obviously I wasn't best pleased at half-time but I thought the second-half performance was superb," he said, according to BBC Radio Scotland.
The Hoops will now hope to take confidence from the win into their clash with Barcelona next week.