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...
17. Michael Jacobs
(Replaced Paddy Lane on 85 minutes) Photo: National World
18. Sheffield Wednesday's Akin Famewo (left) challenges Portsmouth's Paddy Lane during the Sky Bet League One match at Fratton Park, Portsmouth. Picture date: Saturday March 11, 2023. PA Photo. See PA story SOCCER Portsmouth. Photo credit should read: Gareth Fuller/PA Wire. RESTRICTIONS: EDITORIAL USE ONLY No use with unauthorised audio, video, data, fixture lists, club/league logos or "live" services. Online in-match use limited to 120 images, no video emulation. No use in betting, games or single club/league/player publications.
Sheffield Wednesday's Akin Famewo challenges Paddy Lane during their Fratton Park clash. Picture: Gareth Fuller/PA Wire Photo: Gareth Fuller