There has not been time for Pompey to lick their wounds following Saturday’s disappointing defeat to Cambridge.
Attention quickly had to turn to another Fratton test, with an in-form Plymouth side arriving this evening.
The home side will be aiming to halt a run of three successive defeats, having started the season so impressively.
And Danny Cowley wants his side to learn the lessons from recent setbacks to get themselves back on track.
The Blues boss said: “We’ve all felt the pain of the last few days and it would have been a long week without this Plymouth game.
“There’s an immediate opportunity for us to put those wrongs right after coming up short on Saturday.
“It hurt us all and we were disappointed with both the outcome and also the performance. The people of Portsmouth deserve more than we gave them.
"I would think that it’s going to be the most competitive League One we’ve seen for many, many years."
“There’s a lot of learning for us to take from that match and now everyone wants to see a response from us.
“We looked in a really good place after the first four games and haven’t done so well in the past three.
“But a win now could put us back in the play-off positions, so it’s going to be a tight league and I don’t anticipate anyone running away with it.
“I would think that it’s going to be the most competitive League One we’ve seen for many, many years. It’s a division where anyone can beat anyone.”
Ryan Lowe’s Pilgrims have lost only once so far and will climb to top spot if they collect all three points.
Cowley said: “Plymouth have made an outstanding start to the season and they’re unbeaten since the opening day.
“They’ve played a 3-5-2 system consistently for some time now and carry a real threat on the transition.
“Their away form in particular has been very strong and we know the threat they pose, but it might be just the game we need right now.”