KENNY Jackett bemoaned Millwall's leaky defence after watching his side beaten 2-0 by Cardiff City at The Den.
Quick-fire goals from Peter Whittingham and Craig Noone at the start of the second-half put the game out of the Lions' reach and Jackett was frustrated to concede twice in the space of two minutes.
Millwall have conceded 13 goals in their first six Championship fixtures – more than two a game – and Jackett says his backline is becoming a grave concern.
"I was disappointed with the goals against," he said afterwards. "I thought we were well in the game because there wasn't much in it. Cardiff are obviously a very good side but we negated their movement and had a lot of possession.
"We certainly had a foothold in the game. Our goals against column is a worry and we didn't close the ball down well enough for either goal.
"In general play, we put a lot of effort in but couldn't quite find our final ball in the first-half, when I felt we were the better side.
"They're fine margins but we need to get to zeros and ones against – that will make us competitive enough to pick up points on a regular basis.
"I do feel in terms of our passing it's as good as it has been. We've been constructive and have improved on the ball, but it's in both boxes where games are won and lost."