Kenny Jackett is looking for an improvement in crossing when Pompey host Coventry on Tuesday evening.
His side were below-par in that department on Wearside at the weekend and suffered a 2-1 defeat to Sunderland, despite dominating possession and creating more chances.
There is not long to put things right, with the unbeaten Sky Blues now heading to the south coast for a midweek contest.
But Jackett is pleased that they have an immediate chance to put things right at a packed Fratton Park.
The Blues boss said: “We got into very good positions on Saturday and our delivery just wasn’t as good as it should have been.
“That’s something you always practice on the training ground because it’s such an important part of the game.
"It’s something we’re trying to rectify and we’re pleased that we’ve got another game coming along so quickly."
“So we’ll continue to make the players aware that we need better quality, as well as the desire to get on the end of those crosses.
“It’s something we’re trying to rectify and we’re pleased that we’ve got another game coming along so quickly.
“Coventry had a good season last term and finished eighth. They looked bright and continue to do so this season.
“There are several top players in the squad and they have a very energetic way of playing, so we’re full of respect for them.”
Anton Walkes has started the season in the right-back role, although Ross McCrorie impressed in that position after coming on during the second half at Sunderland.
And fit-again summer signing James Bolton is also vying for selection after recovering from an ankle problem.
Jackett said: “We’ve brought Anton off in our two away games and he’s been pretty solid defensively, but we haven’t had enough going forward.
“He needs to build on the athleticism and solidity he’s got and then, as he progresses through his career, work hard at making the right decisions.
“James is closer to being 100 per cent with every training session and we put Ross there in the second half on Saturday.
“So we’ve got certainly got a few options in that right-back position – and Anton is still very much one of them.”