There were several set-pieces that led to a spot of pinball in the Peterborough box at London Road.
Meanwhile, the only goal of the game came at the other end, as a corner was pushed against the head of Rasmus Nicolaisen and ricocheted into the net.
It was a moment of first half misfortune that summed up how things are going for Pompey at the moment.
The Blues went on to dominate after the break, but were unable to force a leveller against their second placed hosts.
Lee Brown was pleased by much of what they produced, however, and is confident that their form can change.
The left-back said: “Our attitude was spot on and the spirit was definitely there, which is what we wanted to see.
"There were balls bouncing around in the opposition box and when you’re on a good run, they fall for you."
“I thought that we definitely deserved more from the game, but it’s just not meant to be for us at the moment
“There were balls bouncing around in the opposition box and when you’re on a good run, they fall for you.
“I can’t really remember Peterborough having many real chances, so that shows just how solid we were – and we needed to be.
“There was maybe one clear-cut opportunity, but that came right at the end when we were pushing for an equaliser.
“When you’re on the run that we’re on, you need something to go for you and something to go in off your backside.
“But I’m sure the luck will come for us if the boys keep showing that kind of fight. We’ll start winning matches again.”