Pompey will look to avoid being victims of an FA Cup upset when they face Altrincham at Fratton Park this weekend.
Their opponents have enjoyed plenty of past giant-killings – most notably in the 1980s – and upset Barnsley four years ago.
The Robins have already seen off Chester, Halesowen, Southport and York to reach this stage of the competition.
And they head to the south coast on the back of an impressive 10-match unbeaten run in all competitions.
That includes another victory at York in the FA Trophy and has seen them pull away from the National League North relegation zone.
Phil Parkinson’s men currently occupy 15th position – seven points clear of the bottom two and six adrift of the play-off spots.
It means there will be two in-form sides meeting on Saturday, with Pompey losing just one of their past 12 fixtures.
Altrincham are currently 76 places below the Blues in the football pyramid, but will be hoping to make their cup pedigree count.
Pompey have no new injury concerns ahead of Saturday’s win, while a fit-again Sean Raggett is back in contention.
Ross McCrorie (hamstring) and Tom Naylor (hamstring) are both expected to return to full training next week.
Jack Whatmough is not ready for selection after recovering from a serious knee problem, while Bryn Morris (groin) is still sidelined.
Tom Peers was Altrincham’s hero in the last round, scoring the only goal of the game to secure progress at York.
HEAD TO HEAD
This will be the first competitive meeting between the two clubs.
Pompey fans can secure seats online here or by visiting the Anson Road ticket office.
From 9am on Saturday, they can also be bought from the ticket office in Frogmore Road.
Referee: Tom Nield
Assistants: Simon Shaw and Christopher Husband
Fourth Official: Robert Desmond
Overseas subscribers should note that there is no live iFollow video coverage of FA Cup games, although audio commentary will be available.
The match has been selected for live overseas television coverage and supporters should check local listings to see if it is being televised in their region.
Please note that in-stadium betting is no longer available at Fratton Park.
ALSO IN FA CUP
Games kick-off at 3pm unless stated
Maldon & Tiptree v Newport (7.55pm)
Cheltenham v Port Vale
Forest Green v Carlisle
Kingstonian v AFC Fylde
Oldham v Burton
Shrewsbury v Mansfield
Walsall v Oxford
Eastleigh v Crewe (5.30pm)
Blackpool v Maidstone (2pm)
Bristol Rovers v Plymouth (2pm)
Coventry v Ipswich (2pm)
Crawley v Fleetwood (2pm)
Exeter v Hartlepool (2pm)
Gillingham v Doncaster (2pm)
Northampton v Notts County (2pm)
Peterborough v Dover (2pm)
Rochdale v Boston (2pm)
Tranmere v Chichester (3pm)
Solihull v Rotherham (7.45pm)
FA CUP DRAW
The third round draw will take place from approximately 7pm on Monday and be screened live on BBC Two.
Click here for a list of the draw numbers.