The striker has netted 12 goals in 27 League One outings this season and is comfortably the Blues’ top scorer.
His efforts have been the saving grace in a underperforming side this campaign, and the 26-year-old currently sits third in the highest scoring charts in the third tier.
But how does Bishop and Pompey’s front men compare to the rest of League One?
We’ve taken a look at WhoScored.com to discover who they’ve rated as the most prolific strikers in the league.
Here’s what we’ve found.
17. Nathaniel Mendez-Laing - Derby
Appearances: 26; Goals: 6; Assists: 7; WhoScored rating: 7.15. Photo: Naomi Baker
18. David McGoldrick - Derby
Appearances: 22; Goals: 12; Assists: 2; WhoScored rating: 7.17. Photo: Naomi Baker
19. Aaron Collins - Bristol Rovers
Appearances: 29; Goals: 14; Assists: 10; WhoScored rating: 7.31. Photo: Harry Trump
20. Jonson Clarke-Harris - Peterborough
Appearances: 27; Goals: 16; Assists: 3; WhoScored rating: 7.34. Photo: Catherine Ivill