Marcos Painter insisted Trevor Carson should not be blamed after his error cost Pompey victory at Morecambe.
The keeper let Jack Redshaw’s 76th-minute effort pass through his arms and into the net as the hosts drew level for a second time in Saturday’s 2-2 draw.
It was a day of mixed fortunes for the 25-year-old, who earlier had pulled off a superb 38th-minute penalty save from Padraig Amond.
As it was, Richie Barker’s side had to settle for a point after Jake Jervis had netted twice on his first full start during his second spell with the club.
But Painter does not believe the finger should be pointed at Carson.
He said: ‘You can’t blame Trevor because he made a great save for the penalty and sometimes that happens to goalkeepers.
‘We saw that in the week with Manchester United with David de Gea spilling a ball.
‘Trev’s the last line of defence and when they make a mistake it will normally cost you.
‘But definitely there’s no blame on him, I think he’s been great this season.
‘I know what a great keeper he is and I think the fans respect he has been good for us and kept us in a lot of games so it’s something that happens.
‘It’s in the past now and he is a strong enough character to deal with it and move on to tomorrow at Wycombe. We get a win there and everything is forgotten.
‘He’s a strong character. I am sure that’s not the only mistake he has made in his career so he will be able to deal with that no problem.
‘That’s football, we are always looking to improve and come tomorrow we will be looking to keep a clean sheet and win the game.’