Pompey have been slapped with a £5,000 fine by the Football Association for failing to control their players.
The Blues racked up seven bookings and a red card during the 3-1 FA Cup loss against Brighton at the weekend.
Hayden Mullins, Ibrahima Sonko, Aaron Mokoena, David Nugent, Carl Dickinson, Liam Lawrence and Hermann Hreidarsson all received cautions.
In addition, Dave Kitson was shown a straight red card after referee Graham Scott adjudged he committed violent conduct against Adam El-Abd.
As a result of their indiscipline, Pompey have been served a mandatory 5,000 fine.
FA disciplinary laws state any club who have six or more individual players cautioned or dismissed from the field of play in the same match face such punishment.
Cash-strapped Pompey will now be expected to pay the fine immediately.
It could have been worse – Premier League clubs are issued with a 25,000 fine for the same offence.
Meanwhile, Mokoena is walking a disciplinary tightrope, finding himself one booking away from a two-match suspension.
The Blues skipper received a yellow card at the Withdean Stadium for dissent at the end of the first half.
That was his third caution in his past five matches and ninth of the season.
As a result, one more booking between now and April 10 will see him earn a two-game suspension.
Mokoena has already been banned this season, missing October's 1-0 triumph at Millwall after accruing five bookings.
Carl Dickinson is behind him with six cautions – in addition to a previous red.