View the photos from the Blues' draw at the Crown Ground
Craig MacGillivray saved a penalty as Pompey had to settle for a 1-1 draw with Accrington.
The keeper kept out Billy Kee's first half spot-kick after the same two players had come together in the Blues box.
It had been a dominant display from the visitors up until that point, but they did not forge ahead until Oli Hawkins converted Gareth Evans' free-kick following the interval.
The lead was short-lived, though, as Michael Ihiekwe converted Sean McConville's delivery to ensure the spoils were shared.