Gary Bowyer says his Blackpool side can’t afford to gift Portsmouth goals in the same manner as they did in the reverse fixture back in November.
Pompey ran out 3-2 winners at Bloomfield Road earlier in the season, Brett Pitman scoring twice in a game that produced four goals in the last 16 minutes.
All three of Portsmouth’s goals were avoidable from Blackpool’s point of view and Bowyer wants to make sure there is no repeat when they travel to Fratton Park this weekend.
He said: “You only have to look at the game here earlier in the season when we gifted them three goals and we can’t be doing that this weekend.
“We also went down there last season and didn’t do very well first half, but we changed our shape and we did a lot better in the second half.
“We were unfortunate we didn’t quite get anything at the death and they went and scored with a breakaway goal.
“But a lot has changed since then in terms of personnel for both teams.
“Our last two results should certainly give our players a lot of confidence. It was important we backed up the win at Wigan with a positive result against Peterborough on Sunday.
“Okay, we didn’t get the three points against Peterborough but I was adamant we got something from the game. I really stressed that to the players and I was delighted they did.
“Now it sets us up nicely to go on a long journey to Portsmouth and have a right good go at them.
“It will be a hell of an atmosphere there because they get big crowds.
“I went to watch them at Fleetwood on Tuesday so it was handy having that game so close.
“I have to say I was really impressed with the numbers they came in on a Tuesday night. They deserve everything they get because that’s an unbelievable effort.
“We see ourselves as a young side but on Tuesday there was also a lot of youngsters out there for them.
“But they were good enough and performed well. Whenever you come across a Kenny Jackett team you know you’re going to come across a good footballing team that are very well organised.”