Pompey made one change to the starting line-up from the previous match, away to West Ham, Joel Ward came in to the starting line-up in place of the suspended Liam Lawrence following his sending off at Upton Park.
David Norris took over the skipper's armband.
Dave Kitson continued to be absent - sore ribs keeping him out of this match following a bout of illness.
This was a mediocre match and a very disappointing performance by Pompey who didn't manage a single shot on goal.
The highlight of the game was Robert Koren's strike, for the only goal of the game, from outside the penalty box past Jamie Ashdown's dive low to his right.
Hull had plenty of other opportunities to 'put the game to bed' throughout the match but were unable to do so - they did have one goal chalked off for offside in the first half.
Jamie Ashdown made a couple of good saves in the second half but Hull were profligate in front of goal despite having most of the play.
Unfortunately, another Pompey player saw red - Luke Varney the culprit on this occasion with a tackle that on the day looked innocuous but with a second viewing on the TV, looked dangerous albeit not malicious.
It was disappointing because Pompey had just started to spark in to life and with Hull having missed so many good chances to kill the game off and claim the three points. An unlikely escape with a draw looked a possibility, all be it a remote one. Kanu was making a nuscience of himself and Ryan Williams was in action down the right wing.
It wasn't to be. The game drifted to its conclusion and those Pompey fans there were left to reflect on a performance that was in such contrast to that against West Ham.
During that match, despite the defeat, there were positives to take away from the game and expectations for Hull adjusted upwards accordingly.
There were no positives to take away from this game at all and now, if some of the message boards and Twitter are anything to go by, fans' expectation levels have dropped through the floor. Perhaps a little too quickly?
On field discipline continues to be a big concern and the health of Dave Kitson does too, Pompey need as many fit bodies as they can muster.
However, let's not forget that this continues to be a re-building project and the pieces are slowly falling in to place.
The results against Middlesbrough, Bristol City, Reading and Cardiff City were all as good or better than the corresponding fixtures last season, this defeat to Hull was the first set back against a team Pompey played last season.
With two home games coming up against Blackpool and Peterborough United there is plenty of opportunity on the horizon to put things back on track.
It won't be easy but it can't get any worse than this reversal.
The early stages of the match against Blackpool will be crucial. If the players get it right on the pitch, the fans will respond positively, if that doesn't happen it could turn ugly. We've all got a big, collective, role to play.
Onwards and upwards. PUP!
Match Action Pictures
Here are some pictures I took at the KC Stadium during the match.
Portsmouth versus Hull City: Jamie Ashdown, Aaron Mokoena, Greg Halford, Jason Pearce, Tal Ben Haim, Joel Ward, Hayden Mullins, David Norris, Erik Huseklepp, Luke Varney, Benjani. Substitutes: Stephen Henderson, Ricardso Rocha, Marko Futacs, Ryan Williams, Kanu
Attendance: 18,311 there were probably between 450 and 500 Pompey fans who made the trip to Hull.
Pompey MOTM: None - it's difficult to pick out a MOTM when the performance was so poor.
Next up: Portsmouth versus Blackpool in the Championship on Saturday 24th September at 3PM
BlueThruAndThru
