Stockley's tap-in from close range in the 71st minute proved to be the winning goal for Pompey.
“Adam was in such great form, so it's disappointing for him and I'm hoping that the injury is not too bad," Stockley told Portsmouth's official website.
“But it's a fantastic feeling to score a goal – the best you can get in football – so I'm delighted."
The win saw Portsmouth move to the top of the tier four table, one point ahead of Wycombe Wanderers.
.@JStwentynine delighted to grab #Pompey's winning goal at Bristol Rovers: http://t.co/uAgcoGJgTQpic.twitter.com/C0uHswU50C
— Portsmouth FC (@officialpompey) September 26, 2015
Need a VPN? Or seeking to switch? Then support Tribal Football by clicking here to sign up with our official partners NordVPN. Not only will you receive the best VPN experience, but also great discounts by signing up via Tribal Football. Thanks for your support!