Pompey’s defence of the Leasing.com Trophy continues with a third round trip to Walsall on Tuesday evening.
And Kenny Jackett’s side are 21/20 favourites with Sky Bet to book their place in the quarter-finals after 90 minutes.
The hosts – who are sitting 11th in the League Two table – can be backed at 2/1, with the draw at 12/5.
If you think that the tie will go to penalties, then Walsall are 11/10 to simply qualify, with the Blues at 4/6.
Pompey won 3-2 on their most recent visit to the Bescot Stadium and a repeat of that scoreline carries odds of 14/1.
Those expecting a less free-scoring contest might fancy putting their money on a 1-0 victory at 8/1 or a 2-1 success at 7/1.
And if you think that the Blues will be pushed all the way, take a look at them battling from behind to emerge triumphant at 10/1.
Leading marksman Ronan Curtis is the 4/1 favourite to net the opener, ahead of strikers Ellis Harrison and John Marquis at 9/2.
Elsewhere in the first goalscorer market, Brett Pitman, Gareth Evans and Paul Downing are available at 11/2, 8/1 and 50/1 respectively.
Pompey will be hoping to lift the trophy at Wembley for a second successive favourites and are the 11/2 favourites to do just that.
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