Charlton certainly enjoyed their main festive fixture more than most, producing a superb display to overcome Chelsea 4-2 at the Valley. They now travel to the Lane on Sunday presenting, what looks now in the form guide, a particularly tough challenge.
"Charlton have had an excellent result and it is up to us to try and put something right that has gone wrong," commented David after Patrik Berger inspired Pompey with two free-kick goals in the second half.
"Portsmouth showed more thrust than us. Early on it looked as though we got into one or two decent positions and I thought we might hurt them a bit down our right.
"The game hinged on two free-kicks that were brilliantly struck and it was a time in the game that everything seemed to be going to Portsmouth. We gave too many free-kicks away, but the first free-kick was a harsh decision.
"It is early in the season, but we are very aware of our position, of course.
"It is difficult, we finished up with a young midfield of Ricketts, King and Jackson - Jackson had a capable debut and I'm quite pleased with him.
"We have lost a few players, we want Simon Davies back and Michael Brown is coming in soon. We do need a little more ability and strength in there."
David Pleat says it is up to the team to right a wrong against Charlton following the Boxing Day defeat to Portsmouth at Fratton Park.