Pompey will try to maintain their 100 per cent start to the League One season when they visit Doncaster this weekend.
But it is the hosts who are the narrow 8/5 favourites with Sky Bet to secure all three points on Saturday.
Pompey were beaten 2-1 in last season’ corresponding fixture and the odds of them gaining revenge by that scoreline are 9/1.
Those who think Pompey will have to work hard for the points can tip them to win from a losing position at 16/1.
Brett Pitman has had to be content with a place on the bench in recent weeks, but is still the 9/2 favourite to net the opener.
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