Pompey remain ninth in the League One standings after sharing the spoils with Sheffield Wednesday at Fratton Park.
They had the majority of chances in the 0-0 draw, with Bailey Peacock-Farrell making fine saves to deny George Hirst, Ronan Curtis and Reeco Hackett.
But Danny Cowley's side could not find a breakthrough, despite Massimo Luongo's second half sending off for the Owls.
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