Pompey’s longest trip of the season is, at least on paper, one of their most difficult.
Danny Cowley’s men make the mammoth trip up to the north-east to take on Sunderland on Saturday (3pm kick-off).
Their opponents are sitting third in the League One standings, with only goal difference currently keeping them out of the automatic promotion spots.
But they will be keen to see a return to winning ways, with the past three fixtures yielding just a couple of points.
The most recent outing for the Black Cats came last weekend, when they were held to a 1-1 draw at 10-man Accrington.
It is the fourth successive season that the Wearsider are competing at this level after suffering successive drops from the Premier League and Championship.
They finished fourth to reach the play-offs last term, only to then be beaten 3-2 over two legs by Lincoln.
The one consolation was a trip to Wembley – albeit an empty one – to beat Tranmere and lift the Papa John’s Trophy.
John Marquis’ brace and a Marcus Harness goal sealed a 3-1 victory when Pompey visited the Stadium of Light last season.
Lee Johnson’s men were also beaten at Fratton Park back in October, crumbling to a 4-0 defeat in sodden conditions.
Pompey will check on the fitness of Reeco Hackett, who missed Tuesday’s trip to AFC Wimbledon with a foot injury.
But there are no new injury concerns, with Jayden Reid (knee) and Liam Vincent (shin) the only definite absentees.
Sunderland are missing Aiden McGeady (knee) and Luke O’Nien (shoulder), while Corry Evans, Alex Pritchard and Bailey Wright are all hoping to be passed fit.
The home side could hand debuts to Danny Batth and Patrick Roberts, who signed from Stoke and Manchester City respectively this week.
HEAD TO HEAD
Pompey: 37 wins
Sunderland: 40 wins
On the road
Pompey: 10 wins
Sunderland: 28 wins
Pompey fans will not be able to pay on the day at the Stadium of Light, so please do not travel if you do not have a ticket.
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Please note that the Stadium of Light is a cashless stadium, with only contactless payment allowed inside the ground.
Referee: David Rock
Assistants: Hristo Karaivanov and Chris Isherwood
Fourth Official: Robert Madley
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There will be post-match reaction on the website and our official YouTube channel, with highlights to follow on Sunday.
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ALSO IN LEAGUE ONE
All games kick-off at 3pm
Burton v AFC Wimbledon
Cambridge v Crewe
Charlton v Fleetwood
Ipswich v Accrington
MK Dons v Doncaster
Morecambe v Wycombe
Oxford v Sheffield Wednesday
Plymouth v Lincoln
Rotherham v Cheltenham
Shrewsbury v Bolton
Wigan v Gillingham