Pompey will face Championship opposition when they host QPR in the fourth round of the Emirates FA Cup on Saturday.
But it is the League One side that are the 7/5 favourites with Sky Bet to secure victory after 90 minutes.
The visitors – who beat Leeds to reach this stage of the competition – can be backed at 19/10, with the draw at 23/10.
It finished 1-1 when the sides last met at Fratton Park back in 2010 and a repeat of that scenario carries odds of 5/1.
But if you think they will get the job done on Saturday, then take a look at the 15/2 on offer for a 1-0 win or 9/1 for a 2-1 triumph.
There are plenty of Request-A-Bet specials to look at, including more than 3.5 goals and seven corners for each team at 33/1.
Reckon that is too unlikely? You can back the Blues to net at least twice and win five or more corners at 5/2.
With Jamal Lowe suspended, Ronan Curtis and Brett Pitman are the joint 11/2 favourites to notch the opener.
Elsewhere in the first goalscorer market, Gareth Evans, Tom Naylor and Jack Whatmough are available at 6/1, 25/1 and 66/1 respectively.
Pompey might be favourites with the bookies on Saturday, but they are 80/1 outsiders to lift the FA Cup at Wembley in May.
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