From the Guardian match-report. I say fair play to the Gas for the bit in bold, although the entire report reads like a comedy script.
"Portsmouth also set their worst post-war home attendance but they at least reached four figures, with 1,200 turning up at Fratton Park to see their opponents Bristol Rovers bring off their first-choice goalkeeper Kelle Roos after two minutes to circumvent the competition’s selection rules that bring a £5,000 fine if broken. His replacement, Will Puddy, conceded a penalty with his first act of the game only to save it. However, Portsmouth still won 1-0 thanks to an 88th-minute winner from Kal Naismith, with Puddy making an error. Rovers did not seem overly fussed by the result."