Josh Windass’ 11th minute strike settled matters in a game of few opportunities, while Dominic Iorfa was sent off for the visitors in the second half.
It maintains the Owls’ lead at the top of League One, yet there were still a number of encouraging Blues displays – and here are our on-the-whistle player ratings...
5. Ryley Towler - 7
Another stiff challenge for the youngster and once again he came through with flying colours. Pompey were strong defensively against league leaders and Towler hugely contributed to that. Photo: None
6. Connor Ogilvie - 7
Got forward a lot more than in recent matches and some of his deliveries caused problems for the visitors. Dominic Iorfa’s second-half foul on him reduced the Owls to 10-men. Photo: National World
7. Sheffield Wednesday defender Aden Flint heads the ball over Portsmouth forward Colby Bishop during the EFL Sky Bet League 1 match between Portsmouth and Sheffield Wednesday at Fratton Park, Portsmouth, England on 11 March 2023.
Colby Bishop feels the full force of Aden Flint against Sheffield Wednesday. Picture: Jason Brown/ProSportsImages Photo: Jason Brown
8. Ryan Tunnicliffe - 6
(Replaced by Tom Lowery on 79 minutes) Too many times his final pass was just fractionally short or off-target, when pulling it off could have created a chance. Always keen to have the ball, though, and never afraid to attempt something. Photo: National World