Pompey make their longest League One journey of the season on Saturday when they visit Sunderland.
It is the hosts who are the 13/10 favourites with Sky Bet to secure victory the Stadium of Light.
Kenny Jackett’s troops can be backed at 2/1 to take the points back to the south coast, with the draw available at the same price.
It finished 1-1 in last campaign’s corresponding fixture and a repeat of that scenario carries odds of 9/2.
But if you believe they will have to work hard, then back them to recover from an interval deficit before triumphing at 40/1.
Craig MacGillivray will be aiming to keep a third successive clean sheet, with odds of 21/10 on a shut-out.
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