Pompey will look to record a second successive league win when they travel to Doncaster this weekend.
But it is the hosts – currently sitting in ninth spot – who are the narrow 6/4 favourites with Sky Bet to secure victory
Kenny Jackett’s side can be backed at 13/8 to take all three points home from the Keepmoat Stadium, with the draw at 23/10.
It finished goalless in last season’s corresponding fixture and a repeat of that scenario carries odds of 10/1.
More optimistic punters, however, might prefer to put their money on a 1-0 success at 17/2 or even a 3-1 triumph at 28/1.
And you can also take advantage of a Sky Bet boost, with the Blues coming out on top in a contest where both sides find the target moving from 4/1 to 5/1.
Those who reckon it will be a comfortable afternoon for the visitors can take a look at them winning both halves at 3/1.
But if you think it might be a trickier encounter then perhaps back them to recover from an interval deficit before claiming the points at 28/1.
John Marquis is the 4/1 favourite to net the opener against his former club, ahead of Ellis Harrison at 11/2.
Elsewhere in the first goalscorer market, Brett Pitman, Marcus Harness and Sean Raggett are available at 6/1, 15/2 and 20/1 respectively.
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