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.
1. Alfie May - Cheltenham
Appearances: 21; Goals: 9; Assists: 2; WhoScored rating: 6.74. Photo: Pete Norton
2. Ben House - Lincoln
Appearances: 22; Goals: 7; Assists: 1; WhoScored rating: 6.67. Photo: Bryn Lennon
3. Freddie Ladapo - Ipswich
Appearances: 29; Goals: 10; Assists: 2; WhoScored rating: 6.76. Photo: Stephen Pond
4. Kyle Joseph - Oxford United
Appearances: 21; Goals: 6; Assists: 0; WhoScored rating: 6.77. Photo: Bryn Lennon