Pompey will try to stretch their unbeaten start to the season to 12 matches when they host Gillingham this weekend.
And Kenny Jackett’s side are the 1/2 favourites with Sky Bet to collect all three points at Fratton Park.
Pompey triumphed 4-0 when the sides met in the Checkatrade Trophy last month and a repeat of that scenario carries odds of 20/1.
Pompey looked solid at the back when they beat Coventry earlier in the week and them winning without conceding is priced at 6/4.
Skipper Brett Pitman has recently returned to the starting line-up and is the 7/2 favourite to net the opener.
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