Pompey will look for a return to winning ways when they host Barnsley this weekend following a run of four successive draws.
But it is the visitors – who currently sit second in the League One table – who are the narrow 6/4 favourites with Sky Bet.
It finished 1-1 when the sides met earlier in the campaign and a repeat of that scenario carries odds of 5/1.
Those anticipating a comfortable afternoon for the hosts, might want to take a look at them winning both halves at 17/2.
Or if you think it will be a trickier afternoon, then you can back them to recover from an interval deficit to claim the points at 33/1.
Omar Bogle, Ronan Curtis, Jamal Lowe and Brett Pitman are the joint 11/2 favourites to net the opener.
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