Marlon Pack and Joe Morrell were both sent off twice in the campaign, while Joe Pigott was also given his marching orders.
With the trio contributing to the Blues five red cards across the term, John Mousinho’s men picked up a total of 75 yellow cards in the league.
But are any of Pompey’s squad some of the dirtiest in the division?
Using data provided by WhoScored.com, we’ve worked out the 20 bad boys across League One.
Here’s what we found.
. League One's 20 dirtiest players
The 20 dirtiest players in League One this season. Photo: Jason Brown
. Will Vaulks - Sheffield Wednesday
Fouls-per-game: 1.4; Yellow cards: 7; Red cards: 0. Photo: George Wood
. Jeando Fuchs - Peterborough
Fouls-per-game: 1.5; Yellow cards: 4; Red cards: 0. Photo: David Rogers
. John Marquis - Bristol Rovers
Fouls-per-game: 1.5; Yellow cards: 4; Red cards: 0. Photo: Michael Steele
. George Byers - Sheffield Wednesday
Fouls-per-game: 1.5; Yellow cards: 4; Red cards: 0. Photo: George Wood
. Michael Smith - Sheffield Wednesday
Fouls-per-game: 1.5; Yellow cards: 5; Red cards: 0. Photo: Laurence Griffiths
. Adedeji Oshilaja - Burton
Fouls-per-game: 1.5; Yellow cards: 8; Red cards: 1. Photo: Nathan Stirk
1. League One's 20 dirtiest players
The 20 dirtiest players in League One this season. Photo: Jason Brown
2. Will Vaulks - Sheffield Wednesday
Fouls-per-game: 1.4; Yellow cards: 7; Red cards: 0. Photo: George Wood
3. Jeando Fuchs - Peterborough
Fouls-per-game: 1.5; Yellow cards: 4; Red cards: 0. Photo: David Rogers
4. John Marquis - Bristol Rovers
Fouls-per-game: 1.5; Yellow cards: 4; Red cards: 0. Photo: Michael Steele